Will the Renogy 100W Lightweight Flexible Solar Panel work with the EcoFlow RIVER 2 Max?
Yes. One Renogy 100W Lightweight Flexible Solar Panel works with the EcoFlow RIVER 2 Max: about 24.6 V on a 20°F morning against the station's 50 V limit, and about 100 W in full sun. Two panels: works (2 panels in parallel on Solar input), about 200 W.
Works
1 x 100W Lightweight Flexible Solar Panel into the RIVER 2 Max (1 panel on Solar input) stays inside 11 to 50 V and under 13 A, even at 20F.
- Use the solar charging cable that came with the station (MC4 on the panel side).
100 W, open-circuit 22.5 V, short-circuit 5.8 A, working 18.9 V / 5.3 A. Brand page Panel details
EcoFlow RIVER 2 MaxSolar input Solar input: 11 to 50 V, 220 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 Best option | Solar input | 24.6 | 10.6 | 200 | Works |
| 2 panels in series on Solar input | Solar input | 49.3 | 5.3 | 200 | Works |
Quick answers
Will the Renogy 100W Lightweight Flexible Solar Panel work with the EcoFlow RIVER 2 Max?
Yes. One Renogy 100W Lightweight Flexible Solar Panel works with the EcoFlow RIVER 2 Max: about 24.6 V on a 20°F morning against the station's 50 V limit, and about 100 W in full sun. Two panels: works (2 panels in parallel on Solar input), about 200 W.
Can I connect two 100W Lightweight Flexible Solar Panel panels to the RIVER 2 Max?
Yes, 2 panels in parallel on Solar input. That gives about 200 W.
What cable do I need to connect the 100W Lightweight Flexible Solar Panel to the RIVER 2 Max?
Use the solar charging cable that came with the station (MC4 on the panel side).
Is it safe on a cold morning?
Panel voltage rises in the cold. One 100W Lightweight Flexible Solar Panel goes from 22.5 V on its label to about 24.6 V at 20°F and 25.4 V at 0°F. The RIVER 2 Max accepts up to 50 V on the Solar input.
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Other panels that work with the RIVER 2 Max
- EcoFlow RIVER 2 Max: solar input 11 to 50 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 22.5 V becomes 24.6 V.
- Current over the 13 A cap is safe: the station takes 13 A and you get fewer watts. We count only the capped watts.
- Max 220 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.