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Will the Rich Solar MEGA 100 FLEX work with the EcoFlow DELTA 2 Max?

Yes. One Rich Solar MEGA 100 FLEX works with the EcoFlow DELTA 2 Max: about 22.3 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 panel on Solar input), about 200 W.

Verdict

Works

1 x MEGA 100 FLEX into the DELTA 2 Max (1 panel on Solar input) stays inside 11 to 60 V and under 15 A, even at 20F.

1 x MEGA 100 FLEX1 panel on Solar input
DELTA 2 MaxSolar input
Expected
100W
Voltage at 20F
22.3V
limit 60 V
Current
5.9A
cap 15 A
Cables to buy
  • Use the solar charging cable that came with the station (MC4 on the panel side).
Rich Solar MEGA 100 FLEX

100 W, open-circuit 20.4 V, short-circuit 6.1 A, working 17.1 V / 5.9 A. Brand page Panel details

EcoFlow DELTA 2 Max

Solar input Solar input: 11 to 60 V; Solar input: 11 to 60 V, 1000 W max. Brand page Station details

Change the count or temperature

Two panels: every way to wire them

WiringInputVolts at 20FAmpsWattsVerdict
1 panel on Solar input + 1 panel on Solar input
Best option
Solar input + Solar input22.35.9200Works
2 panels in parallel on Solar input
Solar input22.311.7200Works
2 panels in series on Solar input
Solar input44.75.9200Works

Quick answers

Will the Rich Solar MEGA 100 FLEX work with the EcoFlow DELTA 2 Max?

Yes. One Rich Solar MEGA 100 FLEX works with the EcoFlow DELTA 2 Max: about 22.3 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 panel on Solar input), about 200 W.

Can I connect two MEGA 100 FLEX panels to the DELTA 2 Max?

Yes, 1 panel on Solar input + 1 panel on Solar input. That gives about 200 W.

What cable do I need to connect the MEGA 100 FLEX to the DELTA 2 Max?

Use the solar charging cable that came with the station (MC4 on the panel side).

Is it safe on a cold morning?

Panel voltage rises in the cold. One MEGA 100 FLEX goes from 20.4 V on its label to about 22.3 V at 20°F and 23 V at 0°F. The DELTA 2 Max accepts up to 60 V on the Solar input.

Where to buy

$170 at the Rich Solar store, Oct 28, 2026
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$1,049 at the EcoFlow store, Oct 28, 2026
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Other panels that work with the DELTA 2 Max

→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 2 Max

Rules we applied
  • EcoFlow DELTA 2 Max: solar input 11 to 60 V on the Solar in 1 (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 20.4 V becomes 22.3 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, 1,000 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
From the brand's pageMEGA 100 FLEX label values
Checked Oct 28, 2026