Will the EcoFlow 400W Portable Solar Panel work with the EcoFlow RIVER Max?
No. Open-circuit voltage 48V is above the station's 25V limit. Going over a station's input voltage limit can damage it. Two panels: don't connect (2 panels in parallel on Solar input), about 0 W.
Don't connect
Do not plug this in. Open-circuit voltage 48V is above the station's 25V limit. Going over a station's input voltage limit can damage it.
- Open-circuit voltage 48V is above the station's 25V limit. Going over a station's input voltage limit can damage it.
400 W, open-circuit 48 V, short-circuit 11 A, working 41 V / 9.8 A. Unconfirmed Panel details
EcoFlow RIVER MaxSolar input Solar input: 10 to 25 V, 200 W max. Brand page Station details
Change the count or temperatureTwo panels: every way to wire them
| Wiring | Input | Volts at 20F | Amps | Watts | Verdict |
|---|---|---|---|---|---|
| 2 panels in parallel on Solar input Open-circuit voltage 48V is above the station's 25V limit. Going over a station's input voltage limit can damage it. | Solar input | 52.6 | 19.6 | 0 | Don't connect |
| 2 panels in series on Solar input Open-circuit voltage 96V is above the station's 25V limit. Going over a station's input voltage limit can damage it. | Solar input | 105.1 | 9.8 | 0 | Don't connect |
Quick answers
Will the EcoFlow 400W Portable Solar Panel work with the EcoFlow RIVER Max?
No. Open-circuit voltage 48V is above the station's 25V limit. Going over a station's input voltage limit can damage it. Two panels: don't connect (2 panels in parallel on Solar input), about 0 W.
Can I connect two 400W Portable Solar Panel panels to the RIVER Max?
No: Open-circuit voltage 48V is above the station's 25V limit. Going over a station's input voltage limit can damage it.
Is it safe on a cold morning?
Panel voltage rises in the cold. One 400W Portable Solar Panel goes from 48 V on its label to about 52.6 V at 20°F and 54.2 V at 0°F. The RIVER Max accepts up to 25 V on the Solar input.
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Other panels that work with the RIVER Max
- EcoFlow RIVER Max: solar input 10 to 25 V on the Solar in (Solar input). EcoFlow sets this limit on open-circuit voltage (Voc), so we hold the panels' Voc on your coldest morning to it.
- Cold raises panel voltage: we add 0.30% per °C below 77F (25°C), a typical figure, since this panel does not publish its own. At 20F one panel's 48 V becomes 52.6 V.
- Current over the 12 A cap is safe: the station takes 12 A and you get fewer watts. We count only the capped watts.
- Max 200 W on this input.
- Cold-morning voltage uses 0.30% per °C, typical for crystalline panels. This panel's own value is not published.
- Expected watts are the best case in full sun. Real-world midday output is usually 60 to 80% of that.
- Some numbers for EcoFlow 400W Portable Solar Panel come from a shop listing we have not confirmed in the manual yet.