{
  "entityType": "category",
  "id": "deep-cycle-batteries",
  "canonicalUrl": "https://agentretrievalindex.com/categories/deep-cycle-batteries/",
  "jsonUrl": "https://agentretrievalindex.com/categories/deep-cycle-batteries.json",
  "name": "Deep-Cycle Batteries",
  "summary": "US-market standalone deep-cycle and LiFePO4 batteries indexed from official manufacturer sources only. Rated capacity is recorded with the discharge rate and temperature it was measured at, peak (surge) discharge is never presented as the continuous rating, and cycle life is recorded only with the depth of discharge it is quoted at. Everything the manufacturer does not publish is an honest null.",
  "intro": "This category covers rechargeable batteries sold on their own: 12V, 24V and 48V LiFePO4 blocks and lead-acid (AGM, gel, flooded) deep-cycle batteries, one entity per officially named model. The distinction from a battery power station is what ships in the box, and it changes what can honestly be said about the product. A power station bundles a battery, an inverter and a set of outlets in one case, so it can be described in terms of the appliances it runs and for how long. A bare battery ships none of that: it stores energy for a system the owner designs around it, so the honest figures are its capacity, its charge and discharge envelope, its cycle life and its temperature limits, never a runtime for an appliance it cannot power on its own. Several anti-hype rules are enforced by the schema. Peak or surge discharge current is always recorded with the number of seconds it is rated for and is never collapsed into the continuous rating, the same way the generator category refuses to merge starting watts with running watts. Cycle life is meaningless without its depth-of-discharge basis, so a cycle count is only stored alongside the DoD percentage it was quoted at. And rated energy in watt-hours, when a manufacturer states it, must agree with capacity in amp-hours times the nominal voltage, so a mistyped figure cannot ship. Deep-cycle batteries sit beside solar panels, RV solar kits, battery power stations and generators as the storage layer of the same decision: the part that holds energy, for people who are building or expanding a system rather than buying a finished appliance.",
  "attributes": [
    {
      "key": "chemistry",
      "label": "Chemistry",
      "description": "lifepo4, lithium_ion_other, agm, gel, or flooded_lead_acid. Determines usable depth of discharge, cycle life, weight and cold-weather behaviour."
    },
    {
      "key": "capacity_ah",
      "label": "Rated capacity",
      "unit": "Ah",
      "description": "Amp-hours at the manufacturer's stated discharge rate and temperature. A laboratory figure; usable energy in the field is lower."
    },
    {
      "key": "capacity_wh",
      "label": "Rated energy",
      "unit": "Wh",
      "description": "Watt-hours where the manufacturer states them. Must equal capacity times nominal voltage; otherwise left null rather than computed and presented as sourced."
    },
    {
      "key": "nominal_voltage_v",
      "label": "Nominal voltage",
      "unit": "V",
      "description": "The true nominal voltage (e.g. 12.8 V for a 12V LiFePO4), alongside the 12V/24V/48V class used for grouping."
    },
    {
      "key": "max_continuous_discharge_a",
      "label": "Max continuous discharge",
      "unit": "A",
      "description": "The sustainable discharge current, typically BMS-limited on lithium. Never the peak/surge figure."
    },
    {
      "key": "peak_discharge",
      "label": "Peak (surge) discharge",
      "unit": "A",
      "description": "A brief surge current, always recorded with the seconds it is rated for. Never presented as the continuous rating."
    },
    {
      "key": "cycle_life",
      "label": "Cycle life",
      "description": "Rated cycles, recorded only with the depth of discharge (and where stated, the temperature and end-of-life threshold) it is quoted at."
    },
    {
      "key": "temperature_ranges",
      "label": "Temperature limits",
      "description": "Charge, discharge and storage temperature ranges. Lithium packs commonly block charging below freezing unless self-heating."
    },
    {
      "key": "weight_kg",
      "label": "Weight",
      "unit": "kg"
    },
    {
      "key": "bci_group_size",
      "label": "BCI group size",
      "description": "Standard case size (Group 24, Group 27, Group 31, GC2, etc.) where published, for drop-in fitment."
    },
    {
      "key": "bank_building",
      "label": "Series / parallel support",
      "description": "Whether and how many units may be wired in series and parallel to build larger banks, as officially stated."
    },
    {
      "key": "warranty_years",
      "label": "Warranty",
      "unit": "years"
    }
  ],
  "products": [],
  "comparisons": [],
  "updatedAt": "2026-08-14"
}