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Will the EcoFlow 400W Portable Solar Panel work with the EcoFlow DELTA 3?

Yes. One EcoFlow 400W Portable Solar Panel works with the EcoFlow DELTA 3: about 52.6 V on a 20°F morning against the station's 60 V limit, and about 400 W in full sun. Two panels: works (2 panels in parallel on Solar/Car input (XT60i)), about 500 W.

Verdict

Works

1 x 400W Portable Solar Panel into the DELTA 3 (1 panel on Solar/Car input (XT60i)) stays inside 11 to 60 V and under 15 A, even at 20F.

1 x 400W Portable Solar Panel1 panel on Solar/Car input (XT60i)
DELTA 3Solar/Car input (XT60i)
Expected
400W
Voltage at 20F
52.6V
limit 60 V
Current
9.8A
cap 15 A
Cables to buy
  • Use an MC4 to XT60i solar cable.
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 DELTA 3

Solar input Solar/Car input (XT60i): 11 to 60 V, 500 W max. Manual Station details

Change the count or temperature

Two panels: every way to wire them

WiringInputVolts at 20FAmpsWattsVerdict
2 panels in parallel on Solar/Car input (XT60i)
The panels can push 19.6A but this input takes 15A, so the station caps it. Safe, you just lose some watts.
Solar/Car input (XT60i)52.619.6500Works
2 panels in series on Solar/Car input (XT60i)
Open-circuit voltage 96V is above the station's 60V limit. Going over a station's input voltage limit can damage it.
Solar/Car input (XT60i)105.19.80Don't connect

Quick answers

Will the EcoFlow 400W Portable Solar Panel work with the EcoFlow DELTA 3?

Yes. One EcoFlow 400W Portable Solar Panel works with the EcoFlow DELTA 3: about 52.6 V on a 20°F morning against the station's 60 V limit, and about 400 W in full sun. Two panels: works (2 panels in parallel on Solar/Car input (XT60i)), about 500 W.

Can I connect two 400W Portable Solar Panel panels to the DELTA 3?

Yes, 2 panels in parallel on Solar/Car input (XT60i). That gives about 500 W.

What cable do I need to connect the 400W Portable Solar Panel to the DELTA 3?

Use an MC4 to XT60i solar cable.

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 DELTA 3 accepts up to 60 V on the Solar/Car input (XT60i).

Where to buy

$599 at the EcoFlow store, Oct 28, 2026
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$629 at the EcoFlow store, Oct 28, 2026
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Other panels that work with the DELTA 3

→Renogy 250W N-Type Bifacial Solar Panel, about 500 W with two
→EcoFlow NextGen 220W Bifacial Portable Solar Panel, about 438 W with two
→BLUETTI PV350D, about 414 W with two
→Jackery SolarSaga 200 (JS-200E), about 400 W with two
→Jackery SolarSaga 200 (JS-200D), about 400 W with two

All 33 panels checked against the DELTA 3

Rules we applied
  • EcoFlow DELTA 3: solar input 11 to 60 V on the Solar in (Solar/Car input (XT60i)). 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 15 A cap is safe: the station takes 15 A and you get fewer watts. We count only the capped watts.
  • Max 500 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