BLUETTI AC50P vs EcoFlow RIVER Max
Two mid-size power stations, number by number. Neither is ranked above the other. Every spec comes from each maker's manual or product page; tap a station for the source.
- Bigger battery: EcoFlow RIVER Max, 576 Wh vs 504 Wh.
- More AC output: BLUETTI AC50P, 700 W vs 600 W.
- More solar input: about the same (200 W vs 200 W).
- Higher solar voltage limit: BLUETTI AC50P, 28 V vs 25 V.
- Lighter: BLUETTI AC50P, 15.1 lb vs 17 lb.
- Lower brand-store price: BLUETTI AC50P, $339 vs $449.
AC50P and RIVER Max are the same size class: within 72 Wh of each other. AC50P is the lightest at 15.1 lb. AC50P and RIVER Max take the most solar at 200 W, so they refill fastest. AC50P is the cheapest at $339.
How long they run common devices
| Device | BLUETTI AC50P | EcoFlow RIVER Max |
|---|---|---|
| Fridge (60 W) | 7 hours | 8 hours |
| CPAP (40 W) | 11 hours | 12 hours |
| Starlink (100 W) | 4.5 hours | 5 hours |
| Laptop (60 W) | 7 hours | 8 hours |
On a full charge, assuming 85% of the battery is usable. Real devices vary; check the label on yours.
Every spec side by side
| Spec |  BLUETTI |  EcoFlow |
|---|---|---|
Battery Wh, size | 504 Wh fridge about 7 hours | 576 Wh fridge about 8 hours |
AC output W, continuous | 700 W Fridge, CPAP, laptops, lights | 600 W Fridge, CPAP, laptops, lights |
Surge W, a second or two | n/a not published by BLUETTI | 1,200 W motor start-ups |
Solar input W, max | 200 W full in about 3.5 hours | 200 W full in about 4 hours |
Solar voltage range V, panels must fit | 12 to 28 V 1 panel, or 2 in parallel | 10 to 25 V 1 panel, or 2 in parallel |
Solar inputs count | 1 input Solar input | 1 input Solar input |
Weight lb | 15.1 lb one hand | 17 lb one hand |
Wh per pound battery for the weight | 33 Wh/lb higher is denser | 34 Wh/lb higher is denser |
Price brand store | $339 0.67 $/Wh | $449 0.78 $/Wh |
Price per Wh what you pay for storage | $0.67 lower is better value | $0.78 lower is better value |
| Buy | $339 · Details Brand store, Oct 28, 2026 | $449 · Details Brand store, Oct 28, 2026 |
Which solar panels work with each
Our checker at 20°F, using each maker's voltage and current rules. Tap a verdict for the wiring and cables.
Where to buy
Out of stock at the BLUETTI store when we checked
Out of stock at the EcoFlow store when we checked
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