EcoFlow

RIVER 2 Max

★ 4.6 · LiFePO4 · Released 2023
$299
Check Price on Amazon Official EcoFlow site
EcoFlow RIVER 2 Max
Capacity
512 Wh
Output
500W
Solar
220W
Weight
6.1kg
Value
$0.58/Wh

SunSee Take

The EcoFlow RIVER 2 Max delivers 512 Wh of LiFePO4 storage with 500W continuous output. At $0.58/Wh it sits in the competitive tier. With 3,000 rated cycles, expect 8+ years of daily use. Portable for car camping and tailgating. Portability index: 84 Wh/kg.

Pros

  • +Good balance of size and power
  • +Fast charging
  • +Expandable

Cons

  • −500W AC limit for large appliances

Best For

Camping Home Backup

Full Specifications

Last verified: 2026-07
Battery Capacity 512 Wh
Battery Chemistry LiFePO4
AC Output (Continuous) 500W
AC Output (Surge/Peak) 1,000W
Max Solar Input 220W
Weight 6.1 kg (13.5 lbs)
Cycle Life 3,000 cycles to 80%
AC Charge Time (0→100%) 1h
Price per Wh $0.58
Portability (Wh/kg) 84 Wh/kg
EcoFlow RIVER 2 Max
512 Wh · 500W · LiFePO4
Check Price → Official EcoFlow site →

How long will the RIVER 2 Max run common devices?

With 512 Wh usable, here's roughly what this covers. See full runtime tables:

Refrigerator CPAP Space Heater Starlink All appliances →

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Specifications sourced from EcoFlow's official product page. MSRP as of 2026-07. Actual prices may vary by retailer and region. SunSee is an independent platform and is not affiliated with EcoFlow.