ARI Agent Retrieval Index

Product entity · Current

EcoFlow DELTA 2 Max

2,048 Wh LiFePO4 power station with 2,400 W continuous AC output (4,800 W surge) across six outlets, 1,800 W X-Stream charging, up to 1,000 W dual-port solar input, and expansion to 6,144 Wh — at 23 kg.

brand: EcoFlow family: DELTA category: Portable Power Stations confidence: medium updated: Jul 5, 2026

Machine summary · product · ecoflow-delta-2-max

brand
EcoFlow
model_name
DELTA 2 Max
release_status
current
market_region
US
battery_capacity_wh
2048
continuous_ac_output_w
2400
battery_chemistry
lifepo4
weight_kg
23
confidence_level
medium
source_last_checked
2026-07-05
official_product_url
https://us.ecoflow.com/products/delta-2-max-portable-power-station
json_export
/products/ecoflow-delta-2-max.json

Overview

The DELTA 2 Max (model EFD350) is EcoFlow's upper-mid unit: a 2,048 Wh LFP pack rated for 3,000 cycles to 80%, six AC outlets sharing 2,400 W continuous pure sine output (4,800 W surge), and X-Boost allowing up to 3,400 W for compatible resistive loads. Wall charging accepts 1,800 W; EcoFlow publishes only partial recharge claims ('80% in 1.1 hours'), so the full AC recharge time is honestly null here. Dual solar ports take 500 W each for 1,000 W combined at 11–60 V. The page markets a '<20 ms UPS Auto-Switch' while the manual describes EPS bypass with ~30 ms switchover — recorded as marketed-UPS with the switchover-time conflict preserved. Two Smart Extra Batteries take the system to 6,144 Wh.

Variant note: Standard 2,048 Wh model (EFD350). The US site also sells a distinct 'DELTA 2 MAX (1900Wh)' variant at reduced capacity but otherwise matching specs (same 2,400 W output, dimensions, charging); that variant is excluded from this record.

Data note: acRechargeTimeHours null: official sources publish only 80% partial AC claims ('1.1 hour' / '66 minutes'); the page's '2.3 hours' figure is for solar charging. X-Boost 3,400 W excluded from continuous per policy. UPS/EPS conflict preserved: page '<20ms UPS Auto-Switch' and blog FAQ call it UPS; the manual describes EPS with ~30 ms switchover — classified ups_eps_marketing with the 20 vs 30 ms conflict noted. Some us.ecoflow.com configurations showed 'Sold out' at check time; the www.ecoflow.com/us page sells the base unit.

Specifications

Values are normalized to the category attribute schema; each core value's original claim and source are in the provenance table below. Fields not officially documented are omitted rather than estimated.

Battery
AttributeValue
Battery capacity 2,048 Wh
Battery chemistry LiFePO4 (LFP)
Cycle life 3,000 cycles to 80%
Expandable battery support Yes
Max expandable capacity 6,144 Wh
AC output
AttributeValue
Continuous AC output 2,400 W
Surge output 4,800 W
AC outlets 6
Waveform Pure sine wave
Charging
AttributeValue
Max AC charging input 1,800 W
Partial recharge claim (marketing) 80% charge in a speedy 1.1 hour (AC); 43 min to 80% with combined 1,800W AC + 600W solar
Max solar input 1,000 W
Solar input voltage range 11-60V
MPPT controller Yes
Car charging Supported
Pass-through charging Supported
Ports
AttributeValue
Output ports 6 × AC outlets, 4 × USB-A (max 18 W/port), 2 × USB-C (max 100 W/port), 1 × 12V car socket (max 126 W), 2 × DC5521 (max 38 W)
Max single-port USB-C output 100 W
RV port (TT-30) No
Physical
AttributeValue
Weight (unit) 23 kg (50.7 lb)
Dimensions (L × W × H) 497 × 242 × 305 mm
Features & support
AttributeValue
App control Yes
UPS / EPS Marketed as UPS; official docs describe EPS behavior
Warranty 5 years
Release status Current
Market region US

Use cases

  • Home backup for fridges, sump pumps, and appliances under 2,400 W
  • High-draw resistive loads up to 3,400 W via X-Boost
  • Expandable backup: 2 kWh base growing to 6,144 Wh
  • Off-grid/RV-adjacent use with 1,000 W dual-port solar

Strengths and weaknesses

Strengths

  • 2,400 W continuous across six outlets from a 2 kWh pack
  • 1,000 W combined solar input
  • Expansion to 6,144 Wh with two Smart Extra Batteries
  • 23 kg is manageable for its class
  • 5-year warranty

Weaknesses

  • No official full (0–100%) AC recharge time — only 80% partial claims
  • Marketed '<20 ms UPS' conflicts with the manual's ~30 ms EPS description
  • No RV (TT-30) port
  • 3,000-cycle rating trails the 3,500–4,000 figures of newer rivals

Comparisons featuring this product

High Capacity: EcoFlow DELTA 2 Max vs BLUETTI AC200L vs BLUETTI Elite 200 V2 vs Jackery Explorer 2000 Plus vs EcoFlow DELTA Pro

Five US-market home-backup-class LiFePO4 stations from 2 to 3.6 kWh. They split on inverter strength (2,400–3,600 W), RV outlets (three of five have one), solar ceilings (1,000–1,600 W), expansion architecture, and longevity ratings from 3,000 to 6,000 cycles.

updated: Jul 5, 2026

Where to buy

Merchant links are scaffolded but not yet active. When live, some will be affiliate links; merchant relationships never affect indexed specifications or verdicts.

Sources and provenance

Every core field below carries the exact claim text it was normalized from, the official source, and the date it was checked. Policy: official manufacturer sources only for core specs; retailer and marketplace pages are never used as canonical sources. See the methodology for the full source hierarchy.

Field-level provenance (14 entries, checked 2026-07-05)
FieldNormalized valueRaw claimSourceConfidence
batteryCapacityWh 2048 Capacity 2,048Wh Official manual (PDF) — Product page concurs: '2048Wh Capacity'. high
continuousAcOutputW 2400 AC (x6) Pure sine wave, 2,400W total (surge 4,800W) 120V~ 50/60Hz Official manual (PDF) — X-Boost 3,400 W ('Max X-Boost Output Power 3,400 W') excluded from continuous per policy. high
surgeAcOutputW 4800 AC (x6) Pure sine wave, 2,400W total (surge 4,800W) 120V~ 50/60Hz Official manual (PDF) high
numberOfAcOutlets 6 Power 15 devices at once including 6 AC outlets Official product page — Manual spec table: 'AC (x6)'. high
batteryChemistry lifepo4 Battery type LFP Official manual (PDF) — Page: 'LFP battery chemistry giving you 3000+ cycles'. high
acInputW 1800 AC input power X-Stream max. 1,800W 15A Official manual (PDF) high
acRechargeTimeHours — 80% charge in a speedy 1.1 hour Official product page — Only partial (80%) AC claims are published; full AC recharge time left null per policy. The page's '2.3 hours' figure is for solar charging. high
solarInputW 1000 Solar charging input (x2) 11-60V 15A, single port 500W; dual port 1,000W Official manual (PDF) — Page markets 'Up to 1000W solar input' — max normalized per solar-input rule; manual confirms the dual-port maximum. high
weightKg 23 Weight Approximately 23 kg (50 lbs) Official manual (PDF) — Unit weight from the manual spec table. high
dimensionsMm {"l":497,"w":242,"h":305} Dimension 497 x 242 x 305 mm (19.6 x 9.5 x 12 in) Official manual (PDF) — mm given directly by source; the 1900Wh variant page lists identical dimensions. high
cycleLifeRating 3000 Cycle life 3,000 cycles to 80% + capacity Official manual (PDF) — Page: '3000 complete cycles until it reduces to 80% capacity'. high
upsEpsMode ups_eps_marketing <20ms UPS Auto-Switch Official product page — CONFLICT: manual describes EPS — 'The product supports EPS... can automatically switch to the battery powered supply mode within 30ms.' Page/blog market it as UPS with 20 ms. Classified ups_eps_marketing; 20 vs 30 ms switchover conflict preserved. high
warrantyYears 5 5-Year warranty Official product page high
maxExpandableCapacityWh 6144 up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144Wh Official product page — Page also markets '2-6kWh expandable capacity'. high

All sources used

entity: product/ecoflow-delta-2-max source_last_checked: 2026-07-05 confidence_level: medium methodology: /methodology/