BLUETTI AC50B vs EcoFlow RIVER Plus
Two small 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: BLUETTI AC50B, 448 Wh vs 360 Wh.
- More AC output: BLUETTI AC50B, 700 W vs 600 W.
- More solar input: about the same (200 W vs 200 W).
- Higher solar voltage limit: BLUETTI AC50B, 28 V vs 25 V.
- Lighter: EcoFlow RIVER Plus, 11.9 lb vs 14.8 lb.
- Lower brand-store price: EcoFlow RIVER Plus, $249 vs $399.
AC50B and RIVER Plus are the same size class: within 88 Wh of each other. RIVER Plus is the lightest at 11.9 lb. AC50B and RIVER Plus take the most solar at 200 W, so they refill fastest. RIVER Plus is the cheapest at $249.
How long they run common devices
| Device | BLUETTI AC50B | EcoFlow RIVER Plus |
|---|---|---|
| Fridge (60 W) | 6.5 hours | 5 hours |
| CPAP (40 W) | 9.5 hours | 7.5 hours |
| Starlink (100 W) | 4 hours | 3 hours |
| Laptop (60 W) | 6.5 hours | 5 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 | 448 Wh fridge about 6.5 hours | 360 Wh fridge about 5 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 hours | 200 W full in about 2.5 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 | 14.8 lb one hand | 11.9 lb one hand |
Wh per pound battery for the weight | 30 Wh/lb higher is denser | 30 Wh/lb higher is denser |
Price brand store | $399 0.89 $/Wh | $249 0.69 $/Wh |
Price per Wh what you pay for storage | $0.89 lower is better value | $0.69 lower is better value |
| Buy | $399 · Details Brand store, Oct 28, 2026 | $249 · 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
We may earn a commission if you buy through these links. It never changes a verdict.