We may earn a commission if you buy through these links. It never changes a verdict. How this works
Find my setup

Will the EcoFlow 100W Flexible Solar Panel work with the EcoFlow DELTA 3 Ultra Plus?

Yes. One EcoFlow 100W Flexible Solar Panel works with the EcoFlow DELTA 3 Ultra Plus: about 22.4 V on a 20°F morning against the station's 60 V limit, and about 100 W in full sun. Two panels: works (1 panel on Solar input 1 (XT60i) + 1 panel on Solar input 2 (XT60i)), about 200 W.

Verdict

Works

1 x 100W Flexible Solar Panel into the DELTA 3 Ultra Plus (1 panel on Solar input 1 (XT60i)) stays inside 11 to 60 V and under 18 A, even at 20F.

1 x 100W Flexible Solar Panel1 panel on Solar input 1 (XT60i)
DELTA 3 Ultra PlusSolar input 1 (XT60i)
Expected
100W
Voltage at 20F
22.4V
limit 60 V
Current
5.9A
cap 18 A
Cables to buy
  • Use an MC4 to XT60i solar cable.
EcoFlow 100W Flexible Solar Panel

100 W, open-circuit 20.3 V, short-circuit 6.3 A, working 17.1 V / 5.9 A. Brand page Panel details

EcoFlow DELTA 3 Ultra Plus

Solar input Solar input 1 (XT60i): 11 to 60 V; Solar input 2 (XT60i): 11 to 60 V, 1600 W max. Manual Station details

Change the count or temperature

Two panels: every way to wire them

WiringInputVolts at 20FAmpsWattsVerdict
1 panel on Solar input 1 (XT60i) + 1 panel on Solar input 2 (XT60i)
Best option
Solar input 1 (XT60i) + Solar input 2 (XT60i)22.45.9200Works
2 panels in parallel on Solar input 1 (XT60i)
Solar input 1 (XT60i)22.411.8200Works
2 panels in series on Solar input 1 (XT60i)
Solar input 1 (XT60i)44.85.9200Works
2 panels in parallel on Solar input 2 (XT60i)
Solar input 2 (XT60i)22.411.8200Works
2 panels in series on Solar input 2 (XT60i)
Solar input 2 (XT60i)44.85.9200Works

Quick answers

Will the EcoFlow 100W Flexible Solar Panel work with the EcoFlow DELTA 3 Ultra Plus?

Yes. One EcoFlow 100W Flexible Solar Panel works with the EcoFlow DELTA 3 Ultra Plus: about 22.4 V on a 20°F morning against the station's 60 V limit, and about 100 W in full sun. Two panels: works (1 panel on Solar input 1 (XT60i) + 1 panel on Solar input 2 (XT60i)), about 200 W.

Can I connect two 100W Flexible Solar Panel panels to the DELTA 3 Ultra Plus?

Yes, 1 panel on Solar input 1 (XT60i) + 1 panel on Solar input 2 (XT60i). That gives about 200 W.

What cable do I need to connect the 100W Flexible Solar Panel to the DELTA 3 Ultra Plus?

Use an MC4 to XT60i solar cable.

Is it safe on a cold morning?

Panel voltage rises in the cold. One 100W Flexible Solar Panel goes from 20.3 V on its label to about 22.4 V at 20°F and 23.2 V at 0°F. The DELTA 3 Ultra Plus accepts up to 60 V on the Solar input 1 (XT60i).

Where to buy

$199 at the EcoFlow store, Oct 28, 2026
BuyAmazon
$1,599 at the EcoFlow store, Oct 28, 2026
Buy

We may earn a commission if you buy through these links. It never changes a verdict.

Other panels that work with the DELTA 3 Ultra Plus

→EcoFlow 400W Portable Solar Panel, about 800 W with two
→BLUETTI PV350D, about 700 W with two
→Renogy 250W N-Type Bifacial Solar Panel, about 500 W with two
→EcoFlow NextGen 220W Bifacial Portable Solar Panel, about 438 W with two
→Jackery SolarSaga 200 (JS-200E), about 400 W with two

All 33 panels checked against the DELTA 3 Ultra Plus

Rules we applied
  • EcoFlow DELTA 3 Ultra Plus: solar input 11 to 60 V on the Solar in 1 (Solar input 1 (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 0.33% per °C below 77F (25°C), this panel's own figure. At 20F one panel's 20.3 V becomes 22.4 V.
  • Current over the 18 A cap is safe: the station takes 18 A and you get fewer watts. We count only the capped watts.
  • Max 800 W on this input, 1,600 W across all inputs.
Assumptions
  • Cold-morning voltage uses this panel's own coefficient from its manual, 0.33% per °C.
  • Expected watts are the best case in full sun. Real-world midday output is usually 60 to 80% of that.
Sources
Checked Oct 28, 2026