Brands · EcoFlow
EcoFlow offers 286 to 4,096 Wh with LiFePO4 batteries. Start with EcoFlow DELTA 3: 1,024 Wh, mid-size. Check the exact generation and any included panels; similar names can hide different inputs and expansion options.
8 units286 to 4,096 Whchemistry LiFePO4$279 to $2,799$0.44 to $0.98 per Whwarranty 5 yr
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Best EcoFlow overall4.0/5 overall
Score from the maker's figures and 2 independent reviews
Why it’s here
1,024 Wh, mid-size. $0.61 per Wh ($629), 27.6 lb, 4,000-cycle LiFePO4.
$629 · $0.61/Wh
Best value3.8/5 overall
Score from the maker's figures and 4 independent reviews
Why it’s here
2,048 Wh, large. $0.44 per Wh ($899), more battery for the money in this size.
$899 · $0.44/Wh
Easiest to carry4.0/5 overall
Score from the maker's figures and 2 independent reviews
Why it’s here
286 Wh, compact. 10.4 lb, one of the lightest options with enough power.
$279 · $0.98/Wh
Listed smallest to largest by capacity.
8 units
| Unit | Chemistry | Cycles | Store | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| EcoFlow RIVER 3 Plus | 4.0 | 286 | 600 W (1,200 surge) | 10.4 | 220 | LiFePO4 | 3,000 to 80% | $279 | $0.98 | See it at EcoFlowCheck price on Amazon |
| EcoFlow RIVER 2 Pro | 3.8 | 768 | 800 W (1,600 surge) | 18.2 | 220 | LiFePO4 | 3,000 to 80% | $349 | $0.45 | See it at EcoFlow |
| EcoFlow DELTA 3 | 4.0 | 1,024 | 1,800 W (3,600 surge) | 27.6 | 500 | LiFePO4 | 4,000 to 80% | $629 | $0.61 | See it at EcoFlowCheck price on Amazon |
| EcoFlow DELTA 3 Classic | 3.8 | 1,024 | 1,800 W (3,600 surge) | 26.7 | 500 | LiFePO4 | – | $529 | $0.52 | See it at EcoFlowCheck price on Amazon |
| EcoFlow DELTA 3 Plus | 4.1 | 1,024 | 1,800 W (3,600 surge) | 27.6 | 1,000 | LiFePO4 | 4,000 to 80% | $719 | $0.70 | See it at EcoFlow |
| EcoFlow DELTA 3 Max | 3.8 | 2,048 | 2,400 W | 44.8 | 500 | LiFePO4 | – | $899 | $0.44 | See it at EcoFlow |
| EcoFlow DELTA 3 Ultra | 3.9 | 3,072 | 3,600 W (7,200 surge) | 72.1 | 800 | LiFePO4 | – | $1,399 | $0.46 | See it at EcoFlow |
| EcoFlow DELTA Pro 3 | 3.7 | 4,096 | 4,000 W (8,000 surge) | 113.5 | 2,600 | LiFePO4 | 4,000 to 80% | $2,799 | $0.68 | See it at EcoFlowCheck price on Amazon |
EcoFlow's current units run from 286 Wh to 4,096 Wh. Every unit uses LiFePO4 cells, rated between 3,000 and 4,000 cycles. Maximum solar input spans 220 W to 2,600 W, which is the figure that caps recharge speed whatever panel you attach. 5 of 8 accept extra batteries. 8 state a UPS switchover time (10 ms, 30 ms).
Whether the top pick is the right one depends on your load: put your devices into the sizing calculatorand the fit table will say which EcoFlow units, and which rivals, clear it. Side by side with another brand: Jackery vs EcoFlow, Bluetti vs EcoFlow, Anker SOLIX vs EcoFlow.
EcoFlow DELTA 3 Max at $0.44 per Wh. Value only matters once a unit fits: use the calculator to check capacity, continuous output and surge against your devices first.
One whose surge rating clears the compressor's start-up draw and whose capacity covers the days you need; the refrigerator guide lists every unit that clears one, two and three days, and the home-backup page sizes the whole kit.
No brand does. A dash in a cell means EcoFlow does not state that figure, and the table never fills it in from a retailer or a review.
