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

Yes. One EcoFlow 400W Portable Solar Panel works with the EcoFlow DELTA 3 Classic: 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 Classic (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 3 ClassicSolar/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 Classic

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 Classic?

Yes. One EcoFlow 400W Portable Solar Panel works with the EcoFlow DELTA 3 Classic: 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 Classic?

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 Classic?

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 Classic 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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$499 at the EcoFlow store, Oct 28, 2026
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Other panels that work with the DELTA 3 Classic

→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 Classic

Rules we applied
  • EcoFlow DELTA 3 Classic: 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