EcoFlow

RIVER 2

★ 4.5 · LiFePO4 · Released 2023
$189
Check Price on Amazon Official EcoFlow site
EcoFlow RIVER 2
Capacity
256 Wh
Output
300W
Solar
110W
Weight
3.5kg
Value
$0.74/Wh

SunSee Take

The EcoFlow RIVER 2 delivers 256 Wh of LiFePO4 storage with 300W continuous output. At $0.74/Wh it sits in the mid-range tier. With 3,000 rated cycles, expect 8+ years of daily use. Lightweight enough for hiking and travel. Portability index: 73 Wh/kg.

Pros

  • +Ultra lightweight
  • +Fast AC charging
  • +LiFePO4 longevity

Cons

  • −Low capacity
  • −Limited AC output

Best For

Camping Phone & Laptop

Full Specifications

Last verified: 2026-07
Battery Capacity 256 Wh
Battery Chemistry LiFePO4
AC Output (Continuous) 300W
AC Output (Surge/Peak) 600W
Max Solar Input 110W
Weight 3.5 kg (7.7 lbs)
Cycle Life 3,000 cycles to 80%
AC Charge Time (0→100%) 1h
Price per Wh $0.74
Portability (Wh/kg) 73 Wh/kg
EcoFlow RIVER 2
256 Wh · 300W · LiFePO4
Check Price → Official EcoFlow site →

How long will the RIVER 2 run common devices?

With 256 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.