{
  "export": "expansion-batteries",
  "canonicalUrl": "https://agentretrievalindex.com/export/expansion-batteries.json",
  "count": 6,
  "updatedAt": "2026-08-15",
  "items": [
    {
      "entityType": "expansion_battery",
      "id": "anker-solix-bp3800",
      "canonicalUrl": "https://agentretrievalindex.com/expansion-batteries/anker-solix-bp3800/",
      "jsonUrl": "https://agentretrievalindex.com/expansion-batteries/anker-solix-bp3800.json",
      "name": "Anker SOLIX BP3800 Expansion Battery",
      "brand": "Anker SOLIX",
      "category": {
        "id": "expansion-batteries",
        "name": "Expansion Batteries",
        "canonicalUrl": "https://agentretrievalindex.com/categories/expansion-batteries/",
        "jsonUrl": "https://agentretrievalindex.com/categories/expansion-batteries.json"
      },
      "summary": "3,840 Wh LiFePO4 expansion battery for the Anker SOLIX F3800 (and F3800 Plus), 33 kg. Adds capacity to the host, with no outlets of its own and no direct charging. Up to six chain per host. 5-year warranty. Anker's own page conflicts on hosts, so the compatibility here is the rendered F3800 / F3800 Plus claim with the 'Only F3800' string preserved in notes.",
      "description": "The Anker SOLIX BP3800 is a 3,840 Wh LiFePO4 expansion battery (75 Ah at 51.2 V nominal) in a 33 kg case, built to enlarge Anker's SOLIX F3800 power station. It has no outlets of its own and charges only through the host; up to six units chain per host. Anker's own materials conflict on which hosts it fits: the rendered FAQ and the page's JSON-LD say F3800 and F3800 Plus, another block on the same page says Only F3800, and the user guide names no host at all. This record follows the rendered claim, corroborated by the official F3800 Plus bundle SKU, and lists both the F3800 and F3800 Plus, while preserving the conflicting Only F3800 string in the record notes. The BP3800's own specifications come from its user guide, not from the F3800 station compare-table on the same page, which has no BP3800 column and describes the station. Warranty is 5 years. Cycle life is not published as a depth-of-discharge rating for this unit.",
      "identity": {
        "brand": "Anker SOLIX",
        "modelName": "BP3800",
        "normalizedSlug": "anker-solix-bp3800",
        "seriesFamily": "SOLIX",
        "releaseStatus": "current",
        "marketRegion": [
          "US"
        ],
        "officialProductUrl": "https://www.ankersolix.com/products/bp3800-expansion-battery",
        "officialManualUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
        "officialSpecSheetUrl": null
      },
      "compatibility": {
        "officialCompatibilityStatement": "Compatible with the Anker SOLIX F3800 and F3800 Plus",
        "compatibleHostModels": [
          "Anker SOLIX F3800",
          "Anker SOLIX F3800 Plus"
        ],
        "maxChainable": 6,
        "compatibilityBasis": "Verbatim manufacturer statement only. Never inferred from connector type, brand or capacity."
      },
      "capacity": {
        "capacityWh": 3840,
        "capacityBasis": "This expansion unit alone, not a combined host-plus-expansion system total.",
        "capacityAh": 75,
        "nominalVoltageV": 51.2,
        "chemistry": "lifepo4",
        "usableDoDPercent": null
      },
      "integration": {
        "hasOwnOutlets": false,
        "ownOutletsNote": null,
        "chargingInputsNote": "None direct: the BP3800 has no outlets or charging inputs of its own and charges only through its host station.",
        "rechargeTimeNote": null
      },
      "cycleLife": {
        "cycleLifeCycles": null,
        "cycleLifeDoDPercent": null,
        "cycleLifeConditionsNote": "No depth-of-discharge cycle rating is published for the BP3800 itself. The cycle figure on Anker's page belongs to the F3800 station compare-table, not to this expansion battery, so it is not carried over."
      },
      "temperature": {
        "chargeTempRangeC": {
          "minC": 0,
          "maxC": 40
        },
        "dischargeTempRangeC": {
          "minC": -20,
          "maxC": 40
        },
        "storageTempRangeC": null
      },
      "physical": {
        "weightKg": 33,
        "dimensionsMm": {
          "l": 393,
          "w": 355,
          "h": 262
        },
        "ingressProtection": null
      },
      "metadata": {
        "sourceUrls": [
          "https://www.ankersolix.com/products/bp3800-expansion-battery",
          "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE"
        ],
        "sourceLastChecked": "2026-08-15",
        "confidenceLevel": "high",
        "notes": "SKU A1790111-85. COMPATIBILITY CONFLICT preserved (decision recorded): Anker's own product page conflicts on hosts. The rendered FAQ and the page's JSON-LD say 'F3800 and F3800 Plus'; another block on the same page says 'Only F3800'; and the user guide names no host at all. This record follows the rendered claim (F3800 and F3800 Plus), corroborated by the official F3800 Plus bundle SKU, and the conflicting 'Only F3800' string is preserved here rather than silently dropped. CAPACITY-BLUR TRAP avoided: the page's compare-table is an F3800 station table with no BP3800 column, so its 3,840 Wh, cycle and temperature rows describe the STATION; every BP3800 value stored here (75 Ah, 51.2 V, 33 kg, dimensions, temps) came from the BP3800's own user guide. FILENAME NOTE: the hero uses the station prefix A1790111 (the expansion battery is the -85 SKU), so the filename is not identity; the image itself was opened and confirmed to be the single BP3800 unit. cycleLifeCycles is null: no DoD-qualified cycle rating is published for the unit itself.",
        "variantNotes": "BP3800 expansion battery (A1790111-85) for the SOLIX F3800 line. The A1790111 prefix without -85 is the F3800 station; do not conflate the station's compare-table specs with this unit.",
        "revisionNotes": null
      },
      "provenance": [
        {
          "fieldName": "chemistry",
          "normalizedValue": "lifepo4",
          "rawClaimText": "LiFePO4",
          "sourceUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
          "sourceType": "official_support_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "From the BP3800's own user guide."
        },
        {
          "fieldName": "capacityWh",
          "normalizedValue": 3840,
          "rawClaimText": "3840Wh",
          "sourceUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
          "sourceType": "official_support_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "This unit's own energy (75 Ah x 51.2 V). Taken from the BP3800 guide, NOT the F3800 station compare-table on the product page."
        },
        {
          "fieldName": "capacityAh",
          "normalizedValue": 75,
          "rawClaimText": "75Ah",
          "sourceUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
          "sourceType": "official_support_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": ""
        },
        {
          "fieldName": "nominalVoltageV",
          "normalizedValue": 51.2,
          "rawClaimText": "51.2V",
          "sourceUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
          "sourceType": "official_support_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "75 Ah x 51.2 V = 3840 Wh, exactly matching the stated capacity."
        },
        {
          "fieldName": "weightKg",
          "normalizedValue": 33,
          "rawClaimText": null,
          "sourceUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
          "sourceType": "official_support_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Published weight 33 kg from the BP3800 guide; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "dimensionsMm",
          "normalizedValue": [
            393,
            355,
            262
          ],
          "rawClaimText": null,
          "sourceUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
          "sourceType": "official_support_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "393 x 355 x 262 mm from the BP3800 guide; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "officialCompatibilityStatement",
          "normalizedValue": "Compatible with the Anker SOLIX F3800 and F3800 Plus",
          "rawClaimText": "F3800 and F3800 Plus",
          "sourceUrl": "https://www.ankersolix.com/products/bp3800-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "The rendered FAQ and the page's JSON-LD state F3800 and F3800 Plus. A separate block on the same page says 'Only F3800'; that conflicting string is preserved in the record notes. This record follows the rendered claim, corroborated by the F3800 Plus bundle SKU."
        },
        {
          "fieldName": "compatibleHostModels",
          "normalizedValue": [
            "Anker SOLIX F3800",
            "Anker SOLIX F3800 Plus"
          ],
          "rawClaimText": "F3800 and F3800 Plus",
          "sourceUrl": "https://www.ankersolix.com/products/bp3800-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Up to six units chain per host. Conflict with the 'Only F3800' block preserved in notes."
        },
        {
          "fieldName": "warrantyYears",
          "normalizedValue": 5,
          "rawClaimText": null,
          "sourceUrl": "https://www.ankersolix.com/products/bp3800-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "5-year warranty; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "chargeTempRangeC",
          "normalizedValue": [
            0,
            40
          ],
          "rawClaimText": null,
          "sourceUrl": "https://support.ankersolix.com/s/article/Anker-SOLIX-BP3800-Expansion-Battery-USER-GUIDE",
          "sourceType": "official_support_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Charge 0 to 40 C, discharge -20 to 40 C, from the BP3800 guide; sourced via research handoff (2026-08-15)."
        }
      ],
      "warrantyYears": 5,
      "useCases": [
        "Enlarging an Anker SOLIX F3800 or F3800 Plus for multi-day home backup or off-grid use",
        "F3800 systems that stack several batteries for large stored energy behind one inverter"
      ],
      "strengths": [
        "Large 3,840 Wh LiFePO4 capacity in a single stackable unit",
        "Up to six units chain per host for very large banks",
        "5-year warranty",
        "Chemistry, capacity, weight and dimensions published from the BP3800's own guide"
      ],
      "weaknesses": [
        "No outlets and no direct charging: it works only through a host station",
        "Anker's own page conflicts on hosts (F3800 and F3800 Plus in one place, Only F3800 in another)",
        "33 kg: a heavy single-unit lift",
        "No depth-of-discharge cycle rating is published for the unit itself"
      ],
      "merchantLinks": [],
      "merchants": [
        {
          "merchant": "Anker SOLIX",
          "merchantType": "manufacturer",
          "url": "https://www.ankersolix.com/products/bp3800-expansion-battery",
          "affiliateUrl": null,
          "isAffiliate": false,
          "affiliateProgram": null,
          "isPrimary": true,
          "priceText": null,
          "priceValue": null,
          "currency": null,
          "priceCheckedAt": null,
          "priceStatus": "not_tracked",
          "availability": "unknown",
          "note": null
        }
      ],
      "updatedAt": "2026-08-15"
    },
    {
      "entityType": "expansion_battery",
      "id": "bluetti-b300k",
      "canonicalUrl": "https://agentretrievalindex.com/expansion-batteries/bluetti-b300k/",
      "jsonUrl": "https://agentretrievalindex.com/expansion-batteries/bluetti-b300k.json",
      "name": "BLUETTI B300K Expansion Battery",
      "brand": "BLUETTI",
      "category": {
        "id": "expansion-batteries",
        "name": "Expansion Batteries",
        "canonicalUrl": "https://agentretrievalindex.com/categories/expansion-batteries/",
        "jsonUrl": "https://agentretrievalindex.com/categories/expansion-batteries.json"
      },
      "summary": "2,764.8 Wh LiFePO4 expansion battery for BLUETTI's AC-series stations (AC200L, AC200MAX, AC300, AC500), 29.5 kg. Adds capacity to the host and carries a single 12 W USB-A as its only outlet, with no direct AC, solar or car charging of its own. How many chain depends on the host, from 2 up to 6.",
      "description": "The BLUETTI B300K is a 2,764.8 Wh LiFePO4 expansion battery (54 Ah at 51.2 V nominal) in a 29.5 kg case, built to enlarge BLUETTI's AC-series power stations. BLUETTI states it integrates with the AC200L, AC200MAX, AC300 and AC500. It has almost no output of its own: a single USB-A port rated 12 W (5 V / 2.4 A), and BLUETTI's own FAQ answers 'No' to solar and car charging on the unit, so it can only be recharged through its host. The number of expansion units per host varies by model: 2 on the AC200L, 2 on the AC200MAX, 4 on the AC300 and 6 on the AC500. Warranty is 3 years base, extended to 4. A serious variant hazard applies here: a separate 'B300K for Apex300' SKU (prefix B300K2-) shares the name, and the bundle product page bleeds that variant's Apex 300 compatibility, a 6,000-cycle figure and a bundled charger accessory's specs into the base record. This record is anchored only on the canonical B300K page and its manual, which describe the AC-series unit rated for 4,000-plus cycles. No cycle count is published here as a DoD-qualified rating because the manufacturer states capacity retention (80%) rather than a depth-of-discharge basis.",
      "identity": {
        "brand": "BLUETTI",
        "modelName": "B300K",
        "normalizedSlug": "bluetti-b300k",
        "seriesFamily": null,
        "releaseStatus": "current",
        "marketRegion": [
          "US"
        ],
        "officialProductUrl": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
        "officialManualUrl": "https://s4.bluettipower.com/bluetti_lgf/support/2025/05/8693baa7-80a9-4782-9c55-a0bcc94d9229.pdf",
        "officialSpecSheetUrl": null
      },
      "compatibility": {
        "officialCompatibilityStatement": "Effortlessly integrates with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations",
        "compatibleHostModels": [
          "AC200L",
          "AC200MAX",
          "AC300",
          "AC500"
        ],
        "maxChainable": null,
        "compatibilityBasis": "Verbatim manufacturer statement only. Never inferred from connector type, brand or capacity."
      },
      "capacity": {
        "capacityWh": 2764.8,
        "capacityBasis": "This expansion unit alone, not a combined host-plus-expansion system total.",
        "capacityAh": 54,
        "nominalVoltageV": 51.2,
        "chemistry": "lifepo4",
        "usableDoDPercent": null
      },
      "integration": {
        "hasOwnOutlets": true,
        "ownOutletsNote": "One USB-A, 12 W max (5 V / 2.4 A). This is the unit's only output port; it has no AC outlets.",
        "chargingInputsNote": "None direct: the B300K charges only through its host station. BLUETTI's FAQ explicitly answers 'No' to solar and car charging on the unit itself.",
        "rechargeTimeNote": null
      },
      "cycleLife": {
        "cycleLifeCycles": null,
        "cycleLifeDoDPercent": null,
        "cycleLifeConditionsNote": "BLUETTI rates the canonical AC-series B300K at 4,000-plus cycles to 80% of original capacity. That is a capacity-retention figure, not a depth-of-discharge basis, so no DoD-qualified cycle count is stored. A 6,000-cycle figure appears only on the bundle page and belongs to the separate B300K-for-Apex300 variant (see notes)."
      },
      "temperature": {
        "chargeTempRangeC": {
          "minC": 0,
          "maxC": 40
        },
        "dischargeTempRangeC": {
          "minC": -20,
          "maxC": 40
        },
        "storageTempRangeC": null
      },
      "physical": {
        "weightKg": 29.5,
        "dimensionsMm": {
          "l": 525,
          "w": 327,
          "h": 209
        },
        "ingressProtection": null
      },
      "metadata": {
        "sourceUrls": [
          "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "https://s4.bluettipower.com/bluetti_lgf/support/2025/05/8693baa7-80a9-4782-9c55-a0bcc94d9229.pdf"
        ],
        "sourceLastChecked": "2026-08-15",
        "confidenceLevel": "high",
        "notes": "Values anchored ONLY on the canonical BLUETTI B300K expansion-battery page and its manual PDF (2026-08-15). SERIOUS VARIANT HAZARD preserved: a separate 'B300K for Apex300' SKU (prefix B300K2-) shares the B300K name. The /products/b300k bundle page bleeds that variant's Apex 300 compatibility and a 6,000-cycle figure into the base record, and bleeds a bundled Charger 2 accessory's solar input, IP20 rating, 1.59 kg weight and small dimensions into the spec table. None of those belong to this unit: the AC-series B300K is 29.5 kg, 4,000-plus cycles, AC200L/AC200MAX/AC300/AC500 only, no direct charging. maxChainable is null because it varies by host: AC200L 2, AC200MAX 2, AC300 4, AC500 6 (recorded here rather than as a single number that would misrepresent the others). cycleLifeCycles is null by policy: the 4,000-plus figure is quoted to 80% capacity retention, not a depth-of-discharge basis. hasOwnOutlets is true, justified by the single 12 W USB-A port. Storage temperature is not stored as a single range because BLUETTI publishes duration-dependent windows (-20 to 40 C for up to 1 month, -20 to 25 C for up to 6 months); collapsing them to one range would hide the duration dependence. Hero image is a clean BLUETTI 3D render (provenance noted).",
        "variantNotes": "Canonical B300K expansion battery for the AC-series (AC200L/AC200MAX/AC300/AC500). NOT the 'B300K for Apex300' SKU (prefix B300K2-), which is a different, non-interchangeable product despite the shared name.",
        "revisionNotes": null
      },
      "provenance": [
        {
          "fieldName": "chemistry",
          "normalizedValue": "lifepo4",
          "rawClaimText": "LiFePO4",
          "sourceUrl": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": ""
        },
        {
          "fieldName": "capacityWh",
          "normalizedValue": 2764.8,
          "rawClaimText": "2764.8Wh",
          "sourceUrl": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "This unit's own energy (54 Ah x 51.2 V). Also printed on the product render's capacity badge. NOT a combined-system total."
        },
        {
          "fieldName": "capacityAh",
          "normalizedValue": 54,
          "rawClaimText": "54Ah",
          "sourceUrl": "https://s4.bluettipower.com/bluetti_lgf/support/2025/05/8693baa7-80a9-4782-9c55-a0bcc94d9229.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": ""
        },
        {
          "fieldName": "nominalVoltageV",
          "normalizedValue": 51.2,
          "rawClaimText": "51.2V",
          "sourceUrl": "https://s4.bluettipower.com/bluetti_lgf/support/2025/05/8693baa7-80a9-4782-9c55-a0bcc94d9229.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "54 Ah x 51.2 V = 2764.8 Wh, exactly matching the stated capacity."
        },
        {
          "fieldName": "weightKg",
          "normalizedValue": 29.5,
          "rawClaimText": null,
          "sourceUrl": "https://s4.bluettipower.com/bluetti_lgf/support/2025/05/8693baa7-80a9-4782-9c55-a0bcc94d9229.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Published weight 29.5 kg; sourced via research handoff (2026-08-15). This is the AC-series unit, not the 1.59 kg accessory whose weight bleeds onto the bundle page."
        },
        {
          "fieldName": "dimensionsMm",
          "normalizedValue": [
            525,
            327,
            209
          ],
          "rawClaimText": null,
          "sourceUrl": "https://s4.bluettipower.com/bluetti_lgf/support/2025/05/8693baa7-80a9-4782-9c55-a0bcc94d9229.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "525 x 327 x 209 mm; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "officialCompatibilityStatement",
          "normalizedValue": "Effortlessly integrates with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations",
          "rawClaimText": "Effortlessly integrates with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations",
          "sourceUrl": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Four named AC-series hosts. Anchored on the canonical page, not the bundle page that adds Apex 300."
        },
        {
          "fieldName": "compatibleHostModels",
          "normalizedValue": [
            "AC200L",
            "AC200MAX",
            "AC300",
            "AC500"
          ],
          "rawClaimText": "AC200L, AC200MAX, AC300, and AC500",
          "sourceUrl": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Chain limits per host: AC200L 2, AC200MAX 2, AC300 4, AC500 6."
        },
        {
          "fieldName": "ownOutletsNote",
          "normalizedValue": "One USB-A, 12 W max (5 V / 2.4 A)",
          "rawClaimText": "USB-A 12W",
          "sourceUrl": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "The unit's only output port; visible on the product render."
        },
        {
          "fieldName": "warrantyYears",
          "normalizedValue": 3,
          "rawClaimText": "3+1 Years",
          "sourceUrl": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "3 years base plus 1 extended; recorded as 3."
        },
        {
          "fieldName": "chargeTempRangeC",
          "normalizedValue": [
            0,
            40
          ],
          "rawClaimText": null,
          "sourceUrl": "https://s4.bluettipower.com/bluetti_lgf/support/2025/05/8693baa7-80a9-4782-9c55-a0bcc94d9229.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Charge 0 to 40 C, discharge -20 to 40 C; sourced via research handoff (2026-08-15)."
        }
      ],
      "warrantyYears": 3,
      "useCases": [
        "Enlarging a BLUETTI AC200L, AC200MAX, AC300 or AC500 for longer outage or off-grid runtime",
        "AC500 or AC300 systems that need several stacked batteries for whole-day or multi-day backup"
      ],
      "strengths": [
        "Large 2,764.8 Wh LiFePO4 capacity in a single stackable unit",
        "Broadest host coverage here: four named AC-series stations",
        "Chemistry, capacity, weight and dimensions all published, with a manual PDF as a source",
        "A small 12 W USB-A trickle port for phones even when detached from a host"
      ],
      "weaknesses": [
        "No AC output and no direct solar, car or AC charging: it must be recharged through a host",
        "How many units chain depends entirely on the host station (2 to 6)",
        "Name collides with a separate 'B300K for Apex300' SKU whose specs bleed onto the shared bundle page",
        "29.5 kg: a heavy single-unit lift"
      ],
      "merchantLinks": [],
      "merchants": [
        {
          "merchant": "BLUETTI",
          "merchantType": "manufacturer",
          "url": "https://www.bluettipower.com/products/bluetti-b300k-expansion-battery",
          "affiliateUrl": null,
          "isAffiliate": false,
          "affiliateProgram": null,
          "isPrimary": true,
          "priceText": null,
          "priceValue": null,
          "currency": null,
          "priceCheckedAt": null,
          "priceStatus": "not_tracked",
          "availability": "unknown",
          "note": null
        }
      ],
      "updatedAt": "2026-08-15"
    },
    {
      "entityType": "expansion_battery",
      "id": "ecoflow-delta-2-smart-extra-battery",
      "canonicalUrl": "https://agentretrievalindex.com/expansion-batteries/ecoflow-delta-2-smart-extra-battery/",
      "jsonUrl": "https://agentretrievalindex.com/expansion-batteries/ecoflow-delta-2-smart-extra-battery.json",
      "name": "EcoFlow DELTA 2 Smart Extra Battery",
      "brand": "EcoFlow",
      "category": {
        "id": "expansion-batteries",
        "name": "Expansion Batteries",
        "canonicalUrl": "https://agentretrievalindex.com/categories/expansion-batteries/",
        "jsonUrl": "https://agentretrievalindex.com/categories/expansion-batteries.json"
      },
      "summary": "1,024 Wh LiFePO4 add-on battery for the EcoFlow DELTA 2, 9.5 kg, the smallest and lightest unit in this family. Charges only through the host and has no outlets. Release status is unclear: the US product page is delisted, so specs come from EcoFlow's Canada and UK pages plus the official manual.",
      "description": "The EcoFlow DELTA 2 Smart Extra Battery is a 1,024 Wh LiFePO4 add-on that roughly doubles the storage of an EcoFlow DELTA 2. At 9.5 kg it is the smallest and lightest expansion battery indexed here. It has no outlets and charges only through its host; one extra battery connects per DELTA 2. Its US market availability is unclear: the US product page returns a 404 and appears delisted, so the specifications here come from EcoFlow's Canada and UK product pages and the official user manual, and releaseStatus is recorded as unclear rather than asserted either way. EcoFlow publishes no amp-hour figure for its extra batteries, so capacityAh is null; the nominal voltage is 51.2 V. Warranty is not published for this unit. A variant hazard applies: the DELTA Max Smart Extra Battery (2,016 Wh) also lists the DELTA 2 as a compatible host, but it is a different, larger SKU and is not merged into this record.",
      "identity": {
        "brand": "EcoFlow",
        "modelName": "DELTA 2 Smart Extra Battery",
        "normalizedSlug": "ecoflow-delta-2-smart-extra-battery",
        "seriesFamily": "DELTA 2",
        "releaseStatus": "unclear",
        "marketRegion": [
          "CA",
          "UK"
        ],
        "officialProductUrl": "https://us.ecoflow.com/products/delta-2-smart-extra-battery",
        "officialManualUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
        "officialSpecSheetUrl": null
      },
      "compatibility": {
        "officialCompatibilityStatement": "Compatible with the EcoFlow DELTA 2",
        "compatibleHostModels": [
          "EcoFlow DELTA 2"
        ],
        "maxChainable": 1,
        "compatibilityBasis": "Verbatim manufacturer statement only. Never inferred from connector type, brand or capacity."
      },
      "capacity": {
        "capacityWh": 1024,
        "capacityBasis": "This expansion unit alone, not a combined host-plus-expansion system total.",
        "capacityAh": null,
        "nominalVoltageV": 51.2,
        "chemistry": "lifepo4",
        "usableDoDPercent": null
      },
      "integration": {
        "hasOwnOutlets": false,
        "ownOutletsNote": null,
        "chargingInputsNote": "None direct: charges through the host DELTA 2 only. It has no AC or solar input of its own.",
        "rechargeTimeNote": null
      },
      "cycleLife": {
        "cycleLifeCycles": null,
        "cycleLifeDoDPercent": null,
        "cycleLifeConditionsNote": null
      },
      "temperature": {
        "chargeTempRangeC": {
          "minC": 0,
          "maxC": 45
        },
        "dischargeTempRangeC": {
          "minC": -10,
          "maxC": 45
        },
        "storageTempRangeC": {
          "minC": -10,
          "maxC": 45
        }
      },
      "physical": {
        "weightKg": 9.5,
        "dimensionsMm": {
          "l": 400,
          "w": 211,
          "h": 281
        },
        "ingressProtection": null
      },
      "metadata": {
        "sourceUrls": [
          "https://us.ecoflow.com/products/delta-2-smart-extra-battery",
          "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf"
        ],
        "sourceLastChecked": "2026-08-15",
        "confidenceLevel": "medium",
        "notes": "SKU ZMR330EB. RELEASE STATUS UNCLEAR by decision: the US product page (us.ecoflow.com/products/delta-2-smart-extra-battery) returns 404 and appears delisted, so releaseStatus is recorded as unclear and marketRegion as CA/UK rather than US. officialProductUrl retains the US URL as the canonical product identity even though it currently 404s; the working sources are EcoFlow's Canada and UK product pages and the official manual PDF. confidenceLevel is medium (not high) because the canonical US source is gone and specs come from other-region pages plus the manual. No merchant is recorded: there is no reliable US purchase path, so WhereToBuy renders nothing (same treatment as other entities with no purchase path). capacityWh is this unit's own 1,024 Wh; EcoFlow publishes no amp-hour figure, so capacityAh is null and the Ah x V check does not apply. warrantyYears is null (unpublished). cycleLifeCycles is null (no DoD-qualified figure published). officialCompatibilityStatement is a faithful paraphrase of the sourced host naming on the CA/UK pages and manual; the exact verbatim string was not captured in this pass (see provenance). VARIANT HAZARD: the DELTA Max Smart Extra Battery (2,016 Wh) also lists DELTA 2 as a host but is a different, larger SKU and must not be merged.",
        "variantNotes": "DELTA 2 Smart Extra Battery (ZMR330EB), 1,024 Wh, for the EcoFlow DELTA 2. Distinct from the DELTA Max Smart Extra Battery (2,016 Wh), which also lists the DELTA 2 as a host.",
        "revisionNotes": null
      },
      "provenance": [
        {
          "fieldName": "chemistry",
          "normalizedValue": "lifepo4",
          "rawClaimText": "LiFePO4",
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Chemistry is well established from the manual even though US availability is unclear."
        },
        {
          "fieldName": "capacityWh",
          "normalizedValue": 1024,
          "rawClaimText": "1024Wh",
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "This unit's own energy. NOT a combined-system total."
        },
        {
          "fieldName": "nominalVoltageV",
          "normalizedValue": 51.2,
          "rawClaimText": "51.2V",
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "EcoFlow publishes no amp-hour rating, so capacityAh is null."
        },
        {
          "fieldName": "weightKg",
          "normalizedValue": 9.5,
          "rawClaimText": null,
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "medium",
          "notes": "Published weight 9.5 kg; sourced via EcoFlow CA/UK pages and the manual (research handoff, 2026-08-15). Medium because the US canonical page is delisted."
        },
        {
          "fieldName": "dimensionsMm",
          "normalizedValue": [
            400,
            211,
            281
          ],
          "rawClaimText": null,
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "medium",
          "notes": "400 x 211 x 281 mm; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "officialCompatibilityStatement",
          "normalizedValue": "Compatible with the EcoFlow DELTA 2",
          "rawClaimText": null,
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "medium",
          "notes": "The DELTA 2 is named as the host on EcoFlow's CA/UK pages and in the manual. Recorded as a faithful paraphrase; the exact verbatim string was not captured in this pass, which is part of why confidence is medium."
        },
        {
          "fieldName": "compatibleHostModels",
          "normalizedValue": [
            "EcoFlow DELTA 2"
          ],
          "rawClaimText": "DELTA 2",
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "medium",
          "notes": "Single host. One extra battery per DELTA 2."
        },
        {
          "fieldName": "chargeTempRangeC",
          "normalizedValue": [
            0,
            45
          ],
          "rawClaimText": null,
          "sourceUrl": "https://websiteoss.ecoflow.com/cms/upload/2022/12/13/EcoFlow%20DELTA%202%20Smart%20Extra%20Battery-User%20Manual%20V1.0%20(EN)_1670905807570.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "medium",
          "notes": "Charge 0 to 45 C, discharge -10 to 45 C, storage -10 to 45 C; sourced via research handoff (2026-08-15)."
        }
      ],
      "warrantyYears": null,
      "useCases": [
        "Roughly doubling an EcoFlow DELTA 2's storage for camping or short outages",
        "Buyers who want the lightest expansion battery here, where one-person portability matters more than capacity"
      ],
      "strengths": [
        "Lightest and smallest expansion battery indexed here at 9.5 kg",
        "LiFePO4 chemistry with capacity, weight and dimensions published",
        "Simple single-battery pairing with the DELTA 2"
      ],
      "weaknesses": [
        "US market availability is unclear: the US product page is delisted",
        "No warranty figure is published for this unit",
        "No outlets and no direct charging: it works only through a DELTA 2",
        "EcoFlow publishes no amp-hour figure and no depth-of-discharge cycle rating"
      ],
      "merchantLinks": [],
      "merchants": [],
      "updatedAt": "2026-08-15"
    },
    {
      "entityType": "expansion_battery",
      "id": "ecoflow-delta-pro-smart-extra-battery",
      "canonicalUrl": "https://agentretrievalindex.com/expansion-batteries/ecoflow-delta-pro-smart-extra-battery/",
      "jsonUrl": "https://agentretrievalindex.com/expansion-batteries/ecoflow-delta-pro-smart-extra-battery.json",
      "name": "EcoFlow DELTA Pro Smart Extra Battery",
      "brand": "EcoFlow",
      "category": {
        "id": "expansion-batteries",
        "name": "Expansion Batteries",
        "canonicalUrl": "https://agentretrievalindex.com/categories/expansion-batteries/",
        "jsonUrl": "https://agentretrievalindex.com/categories/expansion-batteries.json"
      },
      "summary": "3,600 Wh LiFePO4 add-on battery for the EcoFlow DELTA Pro, 38 kg, in the same wheeled trolley chassis as its host but with no outlets. Charges only through the host's extra-battery port. Up to two chain per DELTA Pro. 5-year warranty.",
      "description": "The EcoFlow DELTA Pro Smart Extra Battery is a 3,600 Wh LiFePO4 add-on that doubles the storage of an EcoFlow DELTA Pro. It uses the same wheeled trolley chassis as the host at 38 kg, but it is battery-only: it has no output outlets and charges through the host's extra-battery port, with no AC or solar input of its own. Up to two extra batteries connect to one DELTA Pro. EcoFlow states the DELTA Pro is compatible with the DELTA Pro Smart Extra Battery, and the unit can also sit alongside the EcoFlow Smart Generator as a companion device rather than a host. EcoFlow does not publish an amp-hour figure for its extra batteries, so capacityAh is null; the nominal voltage is 48 V. EcoFlow quotes cycle life as capacity retention (3,500 cycles to 80 percent and 6,500 to 50 percent) rather than a depth-of-discharge basis, so no DoD-qualified cycle count is stored. Warranty is 5 years.",
      "identity": {
        "brand": "EcoFlow",
        "modelName": "DELTA Pro Smart Extra Battery",
        "normalizedSlug": "ecoflow-delta-pro-smart-extra-battery",
        "seriesFamily": "DELTA Pro",
        "releaseStatus": "current",
        "marketRegion": [
          "US"
        ],
        "officialProductUrl": "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
        "officialManualUrl": "https://websiteoss.ecoflow.com/website/upload/2022/2/22/DELTA_Pro_Smart_Extra_Battery_User_Manual_1645511757697.pdf",
        "officialSpecSheetUrl": null
      },
      "compatibility": {
        "officialCompatibilityStatement": "DELTA Pro is compatible with the DELTA Pro Smart Extra Battery",
        "compatibleHostModels": [
          "EcoFlow DELTA Pro"
        ],
        "maxChainable": 2,
        "compatibilityBasis": "Verbatim manufacturer statement only. Never inferred from connector type, brand or capacity."
      },
      "capacity": {
        "capacityWh": 3600,
        "capacityBasis": "This expansion unit alone, not a combined host-plus-expansion system total.",
        "capacityAh": null,
        "nominalVoltageV": 48,
        "chemistry": "lifepo4",
        "usableDoDPercent": null
      },
      "integration": {
        "hasOwnOutlets": false,
        "ownOutletsNote": null,
        "chargingInputsNote": "None direct: charges through the host DELTA Pro's extra-battery port. It has no AC or solar input of its own.",
        "rechargeTimeNote": null
      },
      "cycleLife": {
        "cycleLifeCycles": null,
        "cycleLifeDoDPercent": null,
        "cycleLifeConditionsNote": "EcoFlow states 3,500 cycles to 80% capacity and 6,500 cycles to 50% capacity. These are capacity-retention figures, not a depth-of-discharge basis, so no DoD-qualified cycle count is stored."
      },
      "temperature": {
        "chargeTempRangeC": {
          "minC": 0,
          "maxC": 45
        },
        "dischargeTempRangeC": {
          "minC": -10,
          "maxC": 45
        },
        "storageTempRangeC": {
          "minC": -10,
          "maxC": 45
        }
      },
      "physical": {
        "weightKg": 38,
        "dimensionsMm": {
          "l": 635,
          "w": 285,
          "h": 416
        },
        "ingressProtection": null
      },
      "metadata": {
        "sourceUrls": [
          "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
          "https://websiteoss.ecoflow.com/website/upload/2022/2/22/DELTA_Pro_Smart_Extra_Battery_User_Manual_1645511757697.pdf"
        ],
        "sourceLastChecked": "2026-08-15",
        "confidenceLevel": "high",
        "notes": "Values traced to the EcoFlow DELTA Pro Smart Extra Battery product page and its user manual PDF (2026-08-15), SKU DELTAProEB-US. capacityWh is this unit's own 3,600 Wh; EcoFlow publishes no amp-hour figure for its extra batteries, so capacityAh is null and the Ah x V consistency check does not apply. cycleLifeCycles is null by policy: EcoFlow's 3,500 / 6,500 cycle figures are capacity-retention (to 80% and 50%), not a depth-of-discharge basis. hasOwnOutlets is false: the unit is battery-only and charges through the host's extra-battery port. It can also be used alongside the EcoFlow Smart Generator as a companion device, which is not a host and is not recorded as compatibility.",
        "variantNotes": "DELTA Pro Smart Extra Battery (DELTAProEB-US) for the original DELTA Pro. Not to be confused with the DELTA Pro 3 or DELTA Pro Ultra battery modules, which are different host lines.",
        "revisionNotes": null
      },
      "provenance": [
        {
          "fieldName": "chemistry",
          "normalizedValue": "lifepo4",
          "rawClaimText": "LiFePO4",
          "sourceUrl": "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": ""
        },
        {
          "fieldName": "capacityWh",
          "normalizedValue": 3600,
          "rawClaimText": "3600Wh",
          "sourceUrl": "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "This unit's own energy. NOT a combined-system total."
        },
        {
          "fieldName": "nominalVoltageV",
          "normalizedValue": 48,
          "rawClaimText": "48V",
          "sourceUrl": "https://websiteoss.ecoflow.com/website/upload/2022/2/22/DELTA_Pro_Smart_Extra_Battery_User_Manual_1645511757697.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "EcoFlow publishes no amp-hour rating for its extra batteries, so capacityAh is null."
        },
        {
          "fieldName": "weightKg",
          "normalizedValue": 38,
          "rawClaimText": null,
          "sourceUrl": "https://websiteoss.ecoflow.com/website/upload/2022/2/22/DELTA_Pro_Smart_Extra_Battery_User_Manual_1645511757697.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Published weight 38 kg; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "dimensionsMm",
          "normalizedValue": [
            635,
            285,
            416
          ],
          "rawClaimText": null,
          "sourceUrl": "https://websiteoss.ecoflow.com/website/upload/2022/2/22/DELTA_Pro_Smart_Extra_Battery_User_Manual_1645511757697.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "635 x 285 x 416 mm; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "officialCompatibilityStatement",
          "normalizedValue": "DELTA Pro is compatible with the DELTA Pro Smart Extra Battery",
          "rawClaimText": "DELTA Pro is compatible with the DELTA Pro Smart Extra Battery",
          "sourceUrl": "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Single host. May also pair with the EcoFlow Smart Generator as a companion device (not a host)."
        },
        {
          "fieldName": "compatibleHostModels",
          "normalizedValue": [
            "EcoFlow DELTA Pro"
          ],
          "rawClaimText": "DELTA Pro",
          "sourceUrl": "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Up to two extra batteries per DELTA Pro."
        },
        {
          "fieldName": "warrantyYears",
          "normalizedValue": 5,
          "rawClaimText": null,
          "sourceUrl": "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "5-year warranty; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "chargeTempRangeC",
          "normalizedValue": [
            0,
            45
          ],
          "rawClaimText": null,
          "sourceUrl": "https://websiteoss.ecoflow.com/website/upload/2022/2/22/DELTA_Pro_Smart_Extra_Battery_User_Manual_1645511757697.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Charge 0 to 45 C, discharge -10 to 45 C, storage -10 to 45 C; sourced via research handoff (2026-08-15)."
        }
      ],
      "warrantyYears": 5,
      "useCases": [
        "Doubling an EcoFlow DELTA Pro's storage for whole-day or multi-day backup",
        "DELTA Pro systems paired with the EcoFlow Smart Generator for extended off-grid runtime"
      ],
      "strengths": [
        "Large 3,600 Wh LiFePO4 capacity in the same rollable trolley chassis as the host",
        "Wheels and a pull handle make a 38 kg unit movable by one person",
        "5-year warranty",
        "Chemistry, capacity, weight and dimensions all published with a manual PDF"
      ],
      "weaknesses": [
        "No outlets and no direct charging: it works only through a DELTA Pro",
        "EcoFlow publishes no amp-hour figure, so capacityAh cannot be recorded",
        "Bound to the DELTA Pro host line",
        "Cycle life is quoted only as capacity retention, not a depth-of-discharge basis"
      ],
      "merchantLinks": [],
      "merchants": [
        {
          "merchant": "EcoFlow",
          "merchantType": "manufacturer",
          "url": "https://us.ecoflow.com/products/delta-pro-smart-extra-battery",
          "affiliateUrl": null,
          "isAffiliate": false,
          "affiliateProgram": null,
          "isPrimary": true,
          "priceText": null,
          "priceValue": null,
          "currency": null,
          "priceCheckedAt": null,
          "priceStatus": "not_tracked",
          "availability": "unknown",
          "note": null
        }
      ],
      "updatedAt": "2026-08-15"
    },
    {
      "entityType": "expansion_battery",
      "id": "goal-zero-tank-pro-4000",
      "canonicalUrl": "https://agentretrievalindex.com/expansion-batteries/goal-zero-tank-pro-4000/",
      "jsonUrl": "https://agentretrievalindex.com/expansion-batteries/goal-zero-tank-pro-4000.json",
      "name": "Goal Zero Tank PRO 4000 Expansion Battery",
      "brand": "Goal Zero",
      "category": {
        "id": "expansion-batteries",
        "name": "Expansion Batteries",
        "canonicalUrl": "https://agentretrievalindex.com/categories/expansion-batteries/",
        "jsonUrl": "https://agentretrievalindex.com/categories/expansion-batteries.json"
      },
      "summary": "3,994 Wh LiFePO4 expansion battery for the Goal Zero Yeti PRO 4000, 36.4 kg, the largest capacity in this family. Charges only through its host and has no user outlets. Up to four stack per Yeti PRO 4000, with a stated tipping-hazard warning. 5-year warranty.",
      "description": "The Goal Zero Tank PRO 4000 is a 3,994 Wh LiFePO4 expansion battery (78 Ah at 51.2 V nominal) in a 36.4 kg case, the largest single expansion unit indexed here. It exists to enlarge the Goal Zero Yeti PRO 4000: Goal Zero states it works with the Yeti PRO 4000, and the manual states it must be used with a Yeti PRO 4000. It has no user outlets, only an accessory port, and charges solely through the host. Up to four units stack on one Yeti PRO 4000, and Goal Zero prints a tipping-hazard warning about tall stacks. Its cycle-life note is the most detailed of this family: 4,000 cycles to 80 percent of original capacity at 25 C with a 0.5C charge and discharge. Because that is a capacity-retention figure rather than a depth-of-discharge basis, no DoD-qualified cycle count is stored. Do not confuse it with the legacy Yeti Tank Expansion Battery V3, a lead-acid AGM unit that needs a separate Yeti Link module and never enumerates its hosts. Warranty is 5 years.",
      "identity": {
        "brand": "Goal Zero",
        "modelName": "Tank PRO 4000",
        "normalizedSlug": "goal-zero-tank-pro-4000",
        "seriesFamily": "Tank",
        "releaseStatus": "current",
        "marketRegion": [
          "US"
        ],
        "officialProductUrl": "https://www.goalzero.com/products/tank-pro-4000-lifepo4-battery",
        "officialManualUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
        "officialSpecSheetUrl": null
      },
      "compatibility": {
        "officialCompatibilityStatement": "Works with the Yeti PRO 4000",
        "compatibleHostModels": [
          "Goal Zero Yeti PRO 4000"
        ],
        "maxChainable": 4,
        "compatibilityBasis": "Verbatim manufacturer statement only. Never inferred from connector type, brand or capacity."
      },
      "capacity": {
        "capacityWh": 3994,
        "capacityBasis": "This expansion unit alone, not a combined host-plus-expansion system total.",
        "capacityAh": 78,
        "nominalVoltageV": 51.2,
        "chemistry": "lifepo4",
        "usableDoDPercent": null
      },
      "integration": {
        "hasOwnOutlets": false,
        "ownOutletsNote": null,
        "chargingInputsNote": "None direct: the Tank PRO 4000 has an accessory port only and charges solely through the host Yeti PRO 4000.",
        "rechargeTimeNote": null
      },
      "cycleLife": {
        "cycleLifeCycles": null,
        "cycleLifeDoDPercent": null,
        "cycleLifeConditionsNote": "Goal Zero states 4000 cycles to 80% of original capacity at 25 C with a 0.5C charge and discharge. That is a capacity-retention figure, not a depth-of-discharge basis, so no DoD-qualified cycle count is stored."
      },
      "temperature": {
        "chargeTempRangeC": {
          "minC": 0,
          "maxC": 52
        },
        "dischargeTempRangeC": {
          "minC": -20,
          "maxC": 60
        },
        "storageTempRangeC": null
      },
      "physical": {
        "weightKg": 36.4,
        "dimensionsMm": {
          "l": 543,
          "w": 351,
          "h": 233
        },
        "ingressProtection": null
      },
      "metadata": {
        "sourceUrls": [
          "https://www.goalzero.com/products/tank-pro-4000-lifepo4-battery",
          "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf"
        ],
        "sourceLastChecked": "2026-08-15",
        "confidenceLevel": "high",
        "notes": "Values traced to the Goal Zero Tank PRO 4000 product page and its user guide PDF (2026-08-15), SKU 23110. capacityWh is this unit's own 3,994 Wh (78 Ah x 51.2 V nominal). cycleLifeCycles is null by policy: Goal Zero's 4,000-cycle claim is quoted to 80% capacity retention (with a stated 25 C, 0.5C basis), which is not a depth-of-discharge basis; the count is kept in cycleLifeConditionsNote. hasOwnOutlets is false: only an accessory port, no user outlets, and it charges only through the host. Do NOT index the legacy Yeti Tank Expansion Battery V3: it is lead-acid AGM, sold out, requires a separate Yeti Link module, and never enumerates its hosts (unshippable compatibility).",
        "variantNotes": "Tank PRO 4000 (SKU 23110), the LiFePO4 expansion battery for the Yeti PRO 4000. Distinct from the legacy lead-acid Yeti Tank Expansion Battery V3.",
        "revisionNotes": null
      },
      "provenance": [
        {
          "fieldName": "chemistry",
          "normalizedValue": "lifepo4",
          "rawClaimText": "LiFePO4",
          "sourceUrl": "https://www.goalzero.com/products/tank-pro-4000-lifepo4-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": ""
        },
        {
          "fieldName": "capacityWh",
          "normalizedValue": 3994,
          "rawClaimText": "3994Wh",
          "sourceUrl": "https://www.goalzero.com/products/tank-pro-4000-lifepo4-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "This unit's own energy (78 Ah x 51.2 V = 3993.6 Wh). NOT a combined-system total."
        },
        {
          "fieldName": "capacityAh",
          "normalizedValue": 78,
          "rawClaimText": "78Ah",
          "sourceUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": ""
        },
        {
          "fieldName": "nominalVoltageV",
          "normalizedValue": 51.2,
          "rawClaimText": "51.2V",
          "sourceUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "78 Ah x 51.2 V = 3993.6 Wh, matching the stated 3994 Wh within rounding."
        },
        {
          "fieldName": "weightKg",
          "normalizedValue": 36.4,
          "rawClaimText": null,
          "sourceUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Published weight 36.4 kg; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "dimensionsMm",
          "normalizedValue": [
            543,
            351,
            233
          ],
          "rawClaimText": null,
          "sourceUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "543 x 351 x 233 mm; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "officialCompatibilityStatement",
          "normalizedValue": "Works with the Yeti PRO 4000",
          "rawClaimText": "Works with the Yeti PRO 4000",
          "sourceUrl": "https://www.goalzero.com/products/tank-pro-4000-lifepo4-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "The manual states it must be used with a Yeti PRO 4000."
        },
        {
          "fieldName": "compatibleHostModels",
          "normalizedValue": [
            "Goal Zero Yeti PRO 4000"
          ],
          "rawClaimText": "must be used with a Yeti PRO 4000",
          "sourceUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Single named host. Up to four units per host, with a tipping-hazard warning."
        },
        {
          "fieldName": "cycleLifeConditionsNote",
          "normalizedValue": "4000 cycles to 80% of original capacity at 25 C with a 0.5C charge and discharge",
          "rawClaimText": "4000 cycles to 80% of original capacity at 25 C with a 0.5C charge and discharge",
          "sourceUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Capacity retention, not DoD, so cycleLifeCycles is left null."
        },
        {
          "fieldName": "warrantyYears",
          "normalizedValue": 5,
          "rawClaimText": null,
          "sourceUrl": "https://www.goalzero.com/products/tank-pro-4000-lifepo4-battery",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "5-year warranty; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "chargeTempRangeC",
          "normalizedValue": [
            0,
            52
          ],
          "rawClaimText": null,
          "sourceUrl": "https://cdn.shopify.com/s/files/1/0520/1156/5225/files/23110_2023_TankPRO4000_UserGuide_REV_E_WEB_2.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Charge 0 to 52 C, discharge -20 to 60 C; sourced via research handoff (2026-08-15)."
        }
      ],
      "warrantyYears": 5,
      "useCases": [
        "Enlarging a Goal Zero Yeti PRO 4000 for multi-day home backup or off-grid use",
        "Systems that stack several batteries for large stored energy behind one Yeti PRO 4000 inverter"
      ],
      "strengths": [
        "Largest expansion capacity here at 3,994 Wh in a single unit",
        "The richest published cycle-life conditions in this family (temperature and 0.5C charge/discharge stated)",
        "5-year warranty, the longest here alongside the EcoFlow and Anker units",
        "Chemistry, capacity, weight and dimensions all published with a full user guide PDF"
      ],
      "weaknesses": [
        "No user outlets and no direct charging: it charges only through the Yeti PRO 4000",
        "Bound to a single host, the Yeti PRO 4000",
        "36.4 kg: the heaviest unit here, and stacks carry a stated tipping hazard",
        "Easy to confuse with the legacy lead-acid Yeti Tank Expansion Battery V3, which is a different product"
      ],
      "merchantLinks": [],
      "merchants": [
        {
          "merchant": "Goal Zero",
          "merchantType": "manufacturer",
          "url": "https://www.goalzero.com/products/tank-pro-4000-lifepo4-battery",
          "affiliateUrl": null,
          "isAffiliate": false,
          "affiliateProgram": null,
          "isPrimary": true,
          "priceText": null,
          "priceValue": null,
          "currency": null,
          "priceCheckedAt": null,
          "priceStatus": "not_tracked",
          "availability": "unknown",
          "note": null
        }
      ],
      "updatedAt": "2026-08-15"
    },
    {
      "entityType": "expansion_battery",
      "id": "jackery-battery-pack-2000-plus",
      "canonicalUrl": "https://agentretrievalindex.com/expansion-batteries/jackery-battery-pack-2000-plus/",
      "jsonUrl": "https://agentretrievalindex.com/expansion-batteries/jackery-battery-pack-2000-plus.json",
      "name": "Jackery Battery Pack 2000 Plus",
      "brand": "Jackery",
      "category": {
        "id": "expansion-batteries",
        "name": "Expansion Batteries",
        "canonicalUrl": "https://agentretrievalindex.com/categories/expansion-batteries/",
        "jsonUrl": "https://agentretrievalindex.com/categories/expansion-batteries.json"
      },
      "summary": "2,042.8 Wh add-on battery for the Jackery Explorer 2000 Plus, 19 kg, lithium-ion. Unlike most expansion units it has real DC charging inputs of its own (two DC 8mm ports, up to 24 A / 1400 W), but no user outlets. Up to 5 chain per host. Bound to the Explorer 2000 Plus only, and explicitly not compatible with the HomePower 2000 Plus v2.",
      "description": "The Jackery Battery Pack 2000 Plus is an add-on battery that enlarges the Jackery Explorer 2000 Plus power station. It stores 2,042.8 Wh of its own (45.6 Ah at 44.8 V nominal) in a 19 kg case, and Jackery describes its cells only as generic lithium-ion, so this record does not carry over the host's LiFePO4 marketing. It is unusual for the family in having its own direct charging path: two DC 8mm inputs accepting up to 24 A / 1400 W, where most expansion batteries can only be charged through their host. It has no output outlets of its own; its ports are host-side DC extension connectors. Up to five packs chain to one Explorer 2000 Plus. Jackery states it is compatible with the Explorer 2000 Plus and explicitly not compatible with the HomePower 2000 Plus v2, and there is a separate, non-interchangeable Battery Pack 2000 Plus v2 (2,048 Wh) SKU that must not be confused with this unit. Combined system headlines of 12.256 kWh and 24.513 kWh describe a host plus several packs, not this battery. Jackery rates the pack for 4,000 cycles to 70% of original capacity, which is a capacity-retention figure rather than a depth-of-discharge basis, so no DoD-qualified cycle count is recorded. Warranty is 3 years base, auto-extended to 5.",
      "identity": {
        "brand": "Jackery",
        "modelName": "Battery Pack 2000 Plus",
        "normalizedSlug": "jackery-battery-pack-2000-plus",
        "seriesFamily": "Explorer 2000 Plus",
        "releaseStatus": "current",
        "marketRegion": [
          "US"
        ],
        "officialProductUrl": "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
        "officialManualUrl": "https://r.jackery.net/productGuide/Jackery_Battery_Pack_2000_Plus_User_Manual_US.pdf",
        "officialSpecSheetUrl": null
      },
      "compatibility": {
        "officialCompatibilityStatement": "Compatible with Jackery Explorer 2000 Plus",
        "compatibleHostModels": [
          "Jackery Explorer 2000 Plus"
        ],
        "maxChainable": 5,
        "compatibilityBasis": "Verbatim manufacturer statement only. Never inferred from connector type, brand or capacity."
      },
      "capacity": {
        "capacityWh": 2042.8,
        "capacityBasis": "This expansion unit alone, not a combined host-plus-expansion system total.",
        "capacityAh": 45.6,
        "nominalVoltageV": 44.8,
        "chemistry": "lithium_ion_other",
        "usableDoDPercent": null
      },
      "integration": {
        "hasOwnOutlets": false,
        "ownOutletsNote": null,
        "chargingInputsNote": "Yes, direct: two DC 8mm inputs, up to 24 A / 1400 W combined. This is unusual for an expansion battery, most of which can only be charged through their host.",
        "rechargeTimeNote": null
      },
      "cycleLife": {
        "cycleLifeCycles": null,
        "cycleLifeDoDPercent": null,
        "cycleLifeConditionsNote": "Jackery publishes 4,000 cycles to 70% of original capacity. That is a capacity-retention figure at end of life, not a depth-of-discharge basis, so no DoD-qualified cycle count is stored (see notes)."
      },
      "temperature": {
        "chargeTempRangeC": {
          "minC": 0,
          "maxC": 45
        },
        "dischargeTempRangeC": {
          "minC": -10,
          "maxC": 45
        },
        "storageTempRangeC": null
      },
      "physical": {
        "weightKg": 19,
        "dimensionsMm": {
          "l": 470,
          "w": 331,
          "h": 231
        },
        "ingressProtection": null
      },
      "metadata": {
        "sourceUrls": [
          "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
          "https://r.jackery.net/productGuide/Jackery_Battery_Pack_2000_Plus_User_Manual_US.pdf"
        ],
        "sourceLastChecked": "2026-08-15",
        "confidenceLevel": "high",
        "notes": "Values traced to the Jackery Battery Pack 2000 Plus product page and its US user manual PDF (2026-08-15), SKU JBP-2000A. chemistry is lithium_ion_other, not lifepo4: Jackery states only generic 'Lithium-ion' for the pack and the host's LiFePO4 marketing is not carried over. capacityWh is this unit's own 2,042.8 Wh (45.6 Ah x 44.8 V nominal), NOT the combined-system headlines of 12.256 kWh (single host) or 24.513 kWh (host plus packs). cycleLifeCycles is null by policy: Jackery's 4,000-cycle claim is quoted to 70% capacity retention, which is not a depth-of-discharge basis; the schema's anti-hype gate requires DoD with a cycle count, so the count is kept only in cycleLifeConditionsNote rather than published as a DoD-qualified rating (consistent with the other five expansion records). chargingInputsNote records a genuine direct DC input path, which is unusual for this family. Warranty recorded as 3 (Jackery states '3+2 Years': 3 base plus 2 auto-extended). VARIANT HAZARD: a separate 'Battery Pack 2000 Plus v2' (2,048 Wh) is a different, non-interchangeable SKU; this record is the original 2,042.8 Wh pack.",
        "variantNotes": "Battery Pack 2000 Plus (JBP-2000A), the add-on battery for the Explorer 2000 Plus. Distinct from the Battery Pack 2000 Plus v2 (2,048 Wh).",
        "revisionNotes": null
      },
      "provenance": [
        {
          "fieldName": "chemistry",
          "normalizedValue": "lithium_ion_other",
          "rawClaimText": "Lithium-ion",
          "sourceUrl": "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Jackery states only generic Lithium-ion for the pack; the host line's LiFePO4 marketing is deliberately not carried over."
        },
        {
          "fieldName": "capacityWh",
          "normalizedValue": 2042.8,
          "rawClaimText": "2042.8Wh",
          "sourceUrl": "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "This unit's own energy (45.6 Ah x 44.8 V). NOT the combined-system headlines (12.256 / 24.513 kWh)."
        },
        {
          "fieldName": "capacityAh",
          "normalizedValue": 45.6,
          "rawClaimText": "45.6Ah",
          "sourceUrl": "https://r.jackery.net/productGuide/Jackery_Battery_Pack_2000_Plus_User_Manual_US.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": ""
        },
        {
          "fieldName": "nominalVoltageV",
          "normalizedValue": 44.8,
          "rawClaimText": "44.8V",
          "sourceUrl": "https://r.jackery.net/productGuide/Jackery_Battery_Pack_2000_Plus_User_Manual_US.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Nominal voltage. 45.6 Ah x 44.8 V = 2042.9 Wh, matching the stated 2042.8 Wh within rounding."
        },
        {
          "fieldName": "weightKg",
          "normalizedValue": 19,
          "rawClaimText": null,
          "sourceUrl": "https://r.jackery.net/productGuide/Jackery_Battery_Pack_2000_Plus_User_Manual_US.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Published weight 19 kg; exact spec-table string relayed via the project research handoff (2026-08-15) rather than re-captured verbatim in this pass."
        },
        {
          "fieldName": "dimensionsMm",
          "normalizedValue": [
            470,
            331,
            231
          ],
          "rawClaimText": null,
          "sourceUrl": "https://r.jackery.net/productGuide/Jackery_Battery_Pack_2000_Plus_User_Manual_US.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "470 x 331 x 231 mm; sourced via research handoff (2026-08-15)."
        },
        {
          "fieldName": "officialCompatibilityStatement",
          "normalizedValue": "Compatible with Jackery Explorer 2000 Plus",
          "rawClaimText": "Compatible with Jackery Explorer 2000 Plus",
          "sourceUrl": "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Jackery also states this pack is not compatible with the HomePower 2000 Plus v2."
        },
        {
          "fieldName": "compatibleHostModels",
          "normalizedValue": [
            "Jackery Explorer 2000 Plus"
          ],
          "rawClaimText": "Jackery Explorer 2000 Plus",
          "sourceUrl": "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Single named host."
        },
        {
          "fieldName": "warrantyYears",
          "normalizedValue": 3,
          "rawClaimText": "3+2 Years",
          "sourceUrl": "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
          "sourceType": "official_product_page",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "3 years base plus 2 auto-extended; recorded as 3."
        },
        {
          "fieldName": "chargeTempRangeC",
          "normalizedValue": [
            0,
            45
          ],
          "rawClaimText": null,
          "sourceUrl": "https://r.jackery.net/productGuide/Jackery_Battery_Pack_2000_Plus_User_Manual_US.pdf",
          "sourceType": "official_manual_pdf",
          "dateChecked": "2026-08-15",
          "confidence": "high",
          "notes": "Charge 0 to 45 C, discharge -10 to 45 C; sourced via research handoff (2026-08-15)."
        }
      ],
      "warrantyYears": 3,
      "useCases": [
        "Extending a Jackery Explorer 2000 Plus for multi-day RV, camping or outage use without buying a second station",
        "Systems that need the expansion battery to charge from its own solar or DC source rather than only through the host"
      ],
      "strengths": [
        "Real direct DC charging inputs (two DC 8mm, up to 24 A / 1400 W), which most expansion batteries lack",
        "Up to five packs per Explorer 2000 Plus for large stored energy",
        "Warranty is 3 years base, auto-extended to 5",
        "Weight, capacity and chemistry all published, with a full user manual PDF as a source"
      ],
      "weaknesses": [
        "No outlets of its own: it is a storage add-on, not a power supply",
        "Bound to the Explorer 2000 Plus, and explicitly not compatible with the HomePower 2000 Plus v2",
        "Jackery states only generic lithium-ion chemistry, not the LiFePO4 its host line markets",
        "Easy to confuse with the separate Battery Pack 2000 Plus v2 (2,048 Wh), a different non-interchangeable SKU"
      ],
      "merchantLinks": [],
      "merchants": [
        {
          "merchant": "Jackery",
          "merchantType": "manufacturer",
          "url": "https://www.jackery.com/products/jackery-battery-pack-2000-plus",
          "affiliateUrl": null,
          "isAffiliate": false,
          "affiliateProgram": null,
          "isPrimary": true,
          "priceText": null,
          "priceValue": null,
          "currency": null,
          "priceCheckedAt": null,
          "priceStatus": "not_tracked",
          "availability": "unknown",
          "note": null
        }
      ],
      "updatedAt": "2026-08-15"
    }
  ]
}