EcoFlow RIVER 2 Pro vs EcoFlow DELTA 3 Classic
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 DELTA 3 Classic, 1,024 Wh vs 768 Wh.
- More AC output: EcoFlow DELTA 3 Classic, 1,800 W vs 800 W.
- Higher surge: EcoFlow DELTA 3 Classic, 3,600 W vs 1,600 W.
- More solar input: EcoFlow DELTA 3 Classic, 500 W vs 220 W.
- Higher solar voltage limit: EcoFlow DELTA 3 Classic, 60 V vs 50 V.
- Lighter: EcoFlow RIVER 2 Pro, 18.2 lb vs 26.6 lb.
- Lower brand-store price: EcoFlow RIVER 2 Pro, $389 vs $499.
RIVER 2 Pro and DELTA 3 Classic differ mainly in size: DELTA 3 Classic has the biggest battery at 1,024 Wh. RIVER 2 Pro is the lightest at 18.2 lb. DELTA 3 Classic takes the most solar at 500 W, so it refills fastest. RIVER 2 Pro is the cheapest at $389.
How long they run common devices
| Device | EcoFlow RIVER 2 Pro | EcoFlow DELTA 3 Classic |
|---|---|---|
| Fridge (60 W) | 11 hours | 15 hours |
| CPAP (40 W) | 16 hours | 22 hours |
| Starlink (100 W) | 6.5 hours | 8.5 hours |
| Laptop (60 W) | 11 hours | 15 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 |  EcoFlow |  EcoFlow |
|---|---|---|
Battery Wh, size | 768 Wh fridge about 11 hours | 1,024 Wh fridge about 15 hours |
AC output W, continuous | 800 W Fridge, CPAP, laptops, lights | 1,800 W Microwave, kettle, most kitchen gear |
Surge W, a second or two | 1,600 W motor start-ups | 3,600 W motor start-ups |
Solar input W, max | 220 W full in about 5 hours | 500 W full in about 3 hours |
Solar voltage range V, panels must fit | 11 to 50 V 1 panel, or 2 in parallel | 11 to 60 V 2 panels in series fits |
Solar inputs count | 1 input Solar input | 1 input Solar/Car input (XT60i) |
Weight lb | 18.2 lb one hand | 26.6 lb two hands |
Wh per pound battery for the weight | 42 Wh/lb higher is denser | 38 Wh/lb higher is denser |
Price brand store | $389 0.51 $/Wh | $499 0.49 $/Wh |
Price per Wh what you pay for storage | $0.51 lower is better value | $0.49 lower is better value |
| Buy | $389 · Details Brand store, Oct 28, 2026 | $499 · 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.
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