SiriusWatts

EcoFlow River 2 Max vs Bluetti AC70

A spec-by-spec breakdown to settle it. Prices and value metric (cost per usable Wh) included.

EcoFlow
River 2 Max
Bluetti
AC70
Price $309 $359
Battery capacity 512 Wh 768 Wh
Usable capacity 461 Wh 691 Wh
Real usable at outlet (AC) 392 Wh 587 Wh
AC output (continuous) 500 W 1000 W
Surge output 1000 W 2000 W
Battery chemistry LiFePO4 LiFePO4
Rated cycle life 3000 cycles 3000 cycles
Max solar input 220 W 500 W
Expandable No No
Weight 13.4 lb 22.5 lb
Warranty 5 yrs 5 yrs
Cost per usable Wh $0.67/Wh $0.521/Wh
Check price → Check price →

Bottom line

For pure value, the Bluetti AC70 wins on cost per usable Wh. Need the most capacity? The Bluetti AC70 holds 768 Wh. Prioritizing portability? The EcoFlow River 2 Max is lighter at 13.4 lb. Match the choice to how you scored on the sizing calculator.

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