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Will the EcoFlow 400W Portable Solar Panel work with the EcoFlow RIVER Plus?

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.

Verdict

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.

1 x 400W Portable Solar Panel1 panel on Solar input
RIVER PlusSolar input
Expected
0W
Voltage at 20F
52.6V
limit 25 V
Current
9.8A
cap 12 A
  • Open-circuit voltage 48V is above the station's 25V limit. Going over a station's input voltage limit can damage it.
Cables to buyNone. Do not connect this combination. Pick a panel with lower open-circuit voltage, or fewer in series.
EcoFlow 400W Portable Solar Panel

400 W, open-circuit 48 V, short-circuit 11 A, working 41 V / 9.8 A. Unconfirmed Panel details

EcoFlow RIVER Plus

Solar input Solar input: 10 to 25 V, 200 W max. Brand page Station details

Change the count or temperature

Two panels: every way to wire them

WiringInputVolts at 20FAmpsWattsVerdict
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 input52.619.60Don'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 input105.19.80Don't connect

Quick answers

Will the EcoFlow 400W Portable Solar Panel work with the EcoFlow RIVER Plus?

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 Plus?

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 Plus accepts up to 25 V on the Solar input.

Where to buy

$599 at the EcoFlow store, Oct 28, 2026
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Out of stock at the EcoFlow store
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Other panels that work with the RIVER Plus

→Jackery SolarSaga 200 (JS-200E), about 200 W with two
→EcoFlow NextGen 220W Bifacial Portable Solar Panel, about 200 W with two
→EcoFlow 100W Rigid Solar Panel, about 200 W with two
→EcoFlow 100W Flexible Solar Panel, about 200 W with two
→EcoFlow 110W Portable Solar Panel, about 200 W with two

All 33 panels checked against the RIVER Plus

Rules we applied
  • EcoFlow RIVER Plus: 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.
Assumptions
  • 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.
Sources
Shop listing, not yet confirmed400W Portable Solar Panel label values
Checked Oct 28, 2026