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Will the Renogy 100W Lightweight Flexible Solar Panel work with the EcoFlow DELTA Pro 3?

Yes. One Renogy 100W Lightweight Flexible Solar Panel works with the EcoFlow DELTA Pro 3: about 24.6 V on a 20°F morning against the station's 60 V limit, and about 100 W in full sun. Two panels: works (2 panels in series on XT60 (High-PV)), about 200 W.

Verdict

Works

1 x 100W Lightweight Flexible Solar Panel into the DELTA Pro 3 (1 panel on XT60i (Low-PV)) stays inside 11 to 60 V and under 20 A, even at 20F.

1 x 100W Lightweight Flexible Solar Panel1 panel on XT60i (Low-PV)
DELTA Pro 3XT60i (Low-PV)
Expected
100W
Voltage at 20F
24.6V
limit 60 V
Current
5.3A
cap 20 A
  • The two solar inputs are different. High-PV takes 30 to 150V, Low-PV takes 11 to 60V. A single small panel is too low for High-PV and will not charge there.
  • EcoFlow's manual: panel voltage rises in cold weather, so keep a margin below the limit when wiring in series.
  • For parallel wiring you need Y-branch (T-branch) solar cables.
Cables to buy
  • Use an MC4 to XT60i solar cable.
Renogy 100W Lightweight Flexible Solar Panel

100 W, open-circuit 22.5 V, short-circuit 5.8 A, working 18.9 V / 5.3 A. Brand page Panel details

EcoFlow DELTA Pro 3

Solar input XT60 (High-PV): 30 to 150 V; XT60i (Low-PV): 11 to 60 V, 2600 W max. Manual Station details

Change the count or temperature

Two panels: every way to wire them

WiringInputVolts at 20FAmpsWattsVerdict
2 panels in series on XT60 (High-PV)
Best option
XT60 (High-PV)49.35.3200Works
2 panels in parallel on XT60i (Low-PV)
XT60i (Low-PV)24.610.6200Works
2 panels in series on XT60i (Low-PV)
XT60i (Low-PV)49.35.3200Works
1 panel on XT60 (High-PV) + 1 panel on XT60i (Low-PV)
Open-circuit voltage 22.5V is below the 30V minimum for this input, so it will not start charging.
XT60 (High-PV) + XT60i (Low-PV)24.65.30Don't connect
2 panels in parallel on XT60 (High-PV)
Open-circuit voltage 22.5V is below the 30V minimum for this input, so it will not start charging.
XT60 (High-PV)24.610.60Don't connect

Quick answers

Will the Renogy 100W Lightweight Flexible Solar Panel work with the EcoFlow DELTA Pro 3?

Yes. One Renogy 100W Lightweight Flexible Solar Panel works with the EcoFlow DELTA Pro 3: about 24.6 V on a 20°F morning against the station's 60 V limit, and about 100 W in full sun. Two panels: works (2 panels in series on XT60 (High-PV)), about 200 W.

Can I connect two 100W Lightweight Flexible Solar Panel panels to the DELTA Pro 3?

Yes, 2 panels in series on XT60 (High-PV). That gives about 200 W.

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

Use an MC4 to XT60i solar cable.

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 DELTA Pro 3 accepts up to 60 V on the XT60i (Low-PV).

Where to buy

$150 at the Renogy store, Oct 28, 2026
Buy
$2,799 at the EcoFlow store, Oct 28, 2026
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Other panels that work with the DELTA Pro 3

→EcoFlow 400W Portable Solar Panel, about 800 W with two
→Anker SOLIX PS400 Bifacial, 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

All 33 panels checked against the DELTA Pro 3

Rules we applied
  • EcoFlow DELTA Pro 3: solar input 11 to 60 V on the Solar in 2 (XT60i (Low-PV)). 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 20 A cap is safe: the station takes 20 A and you get fewer watts. We count only the capped watts.
  • Max 1,000 W on this input, 2,600 W across all inputs.
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.
Sources
Checked Oct 28, 2026