Brand comparison
Anker SOLIX arrived later and competes on price per watt-hour and expandability; EcoFlow on charging speed and inverter headroom. Which wins depends on the size class, so choose capacity before comparing prices.
| Measure | Anker SOLIX | EcoFlow |
|---|---|---|
| Current units | 7 | 8 |
| Capacity span | 1,024 to 3,840 Wh | 286 to 4,096 Wh |
| LiFePO4 units | 6 of 7 | 8 of 8 |
| Rated cycles (min to max stated) | 3,000 to 4,000 | 3,000 to 4,000 |
| Price per Wh (median / lowest) | $0.52 / $0.47 | $0.61 / $0.44 |
| Wh per lb (median) | 36.7 | 38.4 |
| Max solar input (median) | 1,000 W | 500 W |
| Max AC input (median) | 1,800 W | 1,500 W |
| Expandable units | 6 of 7 | 5 of 8 |
| State a UPS switchover time | 7 of 7 | 8 of 8 |
| Warranty | 5 years | 5 years |
Medians are computed over the units each brand currently sells on its US store, so a brand with more whole-home units will show a lower median price per Wh. Compare within a class below before reading the scorecard as a verdict.
Per class, the better value between the two brands, with the unit that gives more output and the one that refills faster from a panel named beside it. The solar recharge calculation explains how capacity and the input limit translate into hours of sun.
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Compact: best value4.0/5 overall
Score from the maker's figures and 2 independent reviews
Why it’s here
$0.98 per Wh, $279; the lowest of the 1 units from both brands in this class.
$279 · $0.98/Wh
Mid-size: best value3.8/5 overall
Score from the maker's figures and 3 independent reviews
Why it’s here
$0.45 per Wh, $349; the lowest of the 6 units from both brands in this class. Most output: Anker SOLIX C1000 Gen 2 at 2,000 W (3,000 surge). Fastest solar refill: EcoFlow DELTA 3 Plus at 1,000 W in.
$349 · $0.45/Wh
Large: best value3.8/5 overall
Score from the maker's figures and 4 independent reviews
Why it’s here
$0.44 per Wh, $899; the lowest of the 5 units from both brands in this class. Most output: Anker SOLIX F3000 at 3,600 W (7,200 surge).
$899 · $0.44/Wh
Whole-home class: best value3.6/5 overall
Score from the maker's figures and 3 independent reviews
Why it’s here
$0.57 per Wh, $2,200; the lowest of the 3 units from both brands in this class. Fastest solar refill: Anker SOLIX F3800 Plus at 3,200 W in.
$2,200 · $0.57/Wh
Anker SOLIX: 0 units. EcoFlow: 1 unit (cheapest per Wh EcoFlow RIVER 3 Plus at $0.98, $279).
Listed smallest to largest by capacity.
| Unit | Wh | Output W (surge) | lb | Solar in W | Chemistry | Cycles | AC in W | UPS ms | Warranty | Price $ | $ / Wh | Store |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EcoFlow RIVER 3 Plus | 286 | 600 W (1,200 surge) | 10.4 | 220 | LiFePO4 | 3,000 to 80% | 380 | 10 | – | $279 | $0.98 | See it at EcoFlowCheck price on Amazon |
Anker SOLIX: 2 units (cheapest per Wh Anker SOLIX C1000 at $0.47, $500). EcoFlow: 4 units (cheapest per Wh EcoFlow RIVER 2 Pro at $0.45, $349).
Listed smallest to largest by capacity.
| Unit | Wh | Output W (surge) | lb | Solar in W | Chemistry | Cycles | AC in W | UPS ms | Warranty | Price $ | $ / Wh | Store |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EcoFlow RIVER 2 Pro | 768 | 800 W (1,600 surge) | 18.2 | 220 | LiFePO4 | 3,000 to 80% | 940 | 30 | 5 yr | $349 | $0.45 | See it at EcoFlow |
| Anker SOLIX C1000 Gen 2 | 1,024 | 2,000 W (3,000 surge) | 24.9 | 600 | – | 4,000 to 80% | 1,600 | 10 | 5 yr | $530 | $0.52 | See it at Anker SOLIXCheck price on Amazon |
| EcoFlow DELTA 3 | 1,024 | 1,800 W (3,600 surge) | 27.6 | 500 | LiFePO4 | 4,000 to 80% | 1,500 | 10 | 5 yr | $629 | $0.61 | See it at EcoFlowCheck price on Amazon |
| EcoFlow DELTA 3 Classic | 1,024 | 1,800 W (3,600 surge) | 26.7 | 500 | LiFePO4 | – | 1,400 | 10 | 5 yr | $529 | $0.52 | See it at EcoFlowCheck price on Amazon |
| EcoFlow DELTA 3 Plus | 1,024 | 1,800 W (3,600 surge) | 27.6 | 1,000 | LiFePO4 | 4,000 to 80% | 1,500 | 10 | 5 yr | $719 | $0.70 | See it at EcoFlow |
| Anker SOLIX C1000 | 1,056 | 1,800 W (2,400 surge) | 28.4 | 600 | LiFePO4 | 3,000 to 80% | 1,300 | 20 | 5 yr | $500 | $0.47 | See it at Anker SOLIXCheck price on Amazon |
Anker SOLIX: 3 units (cheapest per Wh Anker SOLIX C2000 Gen 2 at $0.49, $1,000). EcoFlow: 2 units (cheapest per Wh EcoFlow DELTA 3 Max at $0.44, $899).
Listed smallest to largest by capacity.
| Unit | Wh | Output W (surge) | lb | Solar in W | Chemistry | Cycles | AC in W | UPS ms | Warranty | Price $ | $ / Wh | Store |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Anker SOLIX C2000 Gen 2 | 2,048 | 2,400 W (4,000 surge) | 41.7 | 800 | LiFePO4 | 4,000 to 80% | 1,800 | 10 | 5 yr | $1,000 | $0.49 | See it at Anker SOLIX |
| EcoFlow DELTA 3 Max | 2,048 | 2,400 W | 44.8 | 500 | LiFePO4 | – | 1,800 | 10 | 5 yr | $899 | $0.44 | See it at EcoFlow |
| Anker SOLIX F2600 | 2,560 | 2,400 W (2,800 surge) | 69.7 | 1,000 | LiFePO4 | 3,000 to 80% | 1,440 | 20 | 5 yr | $1,500 | $0.59 | See it at Anker SOLIXCheck price on Amazon |
| Anker SOLIX F3000 | 3,072 | 3,600 W (7,200 surge) | 91.5 | 2,400 | LiFePO4 | 4,000 to 80% | 3,600 | 20 | 5 yr | $1,500 | $0.49 | See it at Anker SOLIXCheck price on Amazon |
| EcoFlow DELTA 3 Ultra | 3,072 | 3,600 W (7,200 surge) | 72.1 | 800 | LiFePO4 | – | 1,800 | 10 | 5 yr | $1,399 | $0.46 | See it at EcoFlow |
Anker SOLIX: 2 units (cheapest per Wh Anker SOLIX F3800 at $0.57, $2,200). EcoFlow: 1 unit (cheapest per Wh EcoFlow DELTA Pro 3 at $0.68, $2,799).
Listed smallest to largest by capacity.
| Unit | Wh | Output W (surge) | lb | Solar in W | Chemistry | Cycles | AC in W | UPS ms | Warranty | Price $ | $ / Wh | Store |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Anker SOLIX F3800 | 3,840 | 6,000 W (9,000 surge) | 132.3 | 2,400 | LiFePO4 | 3,000 to 80% | 1,800 | 20 | 5 yr | $2,200 | $0.57 | See it at Anker SOLIXCheck price on Amazon |
| Anker SOLIX F3800 Plus | 3,840 | 6,000 W (9,000 surge) | 136.7 | 3,200 | LiFePO4 | 3,000 to 80% | 1,800 | 20 | 5 yr | $2,600 | $0.68 | See it at Anker SOLIXCheck price on Amazon |
| EcoFlow DELTA Pro 3 | 4,096 | 4,000 W (8,000 surge) | 113.5 | 2,600 | LiFePO4 | 4,000 to 80% | 1,800 | 10 | 5 yr | $2,799 | $0.68 | See it at EcoFlowCheck price on Amazon |
Start from the load, not the brand: the sizing calculator gives the Wh, running W and surge W you need, and its table shows which units from both brands clear it. Among those, the columns above that differ most betweenAnker SOLIX and EcoFlow are price per Wh, maximum solar and AC input (how fast a unit refills), whether extra batteries attach, and whether a UPS switchover time is stated at all. Warranty length is a stated fact; how a claim is handled is not something a spec table can tell you.
Anker SOLIX has the lower median price per watt-hour across its current range ($0.52 against $0.61). Within a size class the answer can flip; the per-class tables above are the honest comparison.
Cycle life is a maker's rating, and both brands' current LiFePO4 units state ratings in the thousands of cycles where they state one at all. Compare the cycles column and the capacity it is rated to; the LiFePO4 vs NMC guide explains why the rating share matters as much as the count.
The unit with the higher maximum solar input for its capacity refills faster from the same panel; the solar page lists hours of sun to refill for every unit. Between these two brands the answer changes by class, which is why the cards above name one per class.
