Bluetti AC50B vs EcoFlow RIVER 2 Max
What is the difference?
The Bluetti AC50B has 700 W of power, 1 kW peak, a 448 Wh battery. The EcoFlow RIVER 2 Max has 500 W of power, 1 kW peak, a 512 Wh battery.
Both use LiFePO4 batteries.
Both have a 5-year warranty.
The Bluetti AC50B can add extra batteries.
Specs side by side
| Bluetti AC50B | EcoFlow RIVER 2 Max | |
|---|---|---|
| Capacity (Wh) | 448 | 512 |
| Continuous (W) | 700 | 500 |
| Peak (W) | 1000 | 1000 |
| Solar input (W) | — | 220 |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycles | — | 3000 |
| Expandable | yes | — |
| Weight (lb) | — | 13 |
| Warranty (yr) | 5 | 5 |
| Fridge run time | 8.4 h | 9.7 h |
| CPAP run time | 10.1 h | 11.6 h |
| Wi-Fi router run time | 29.6 h | 33.8 h |
| Check on Amazon → | Check on Amazon → |
Specs as read from manufacturer pages on 2026-10-29 / 2026-10-31. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.
Common questions
Which has more capacity, Bluetti AC50B or EcoFlow RIVER 2 Max?
The EcoFlow RIVER 2 Max. More capacity: 512 Wh vs 448 Wh.
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Compare other models → · All Bluetti models · All EcoFlow models