Will this panel work with my station?
Pick both, say how many panels and how cold your coldest morning gets. We apply the station maker's own voltage and current rules, and the fact that cold raises panel voltage.
How many panels
Try an example
Verdict
Works
2 x NextGen 220W Bifacial Portable Solar Panel into the DELTA 3 Plus (1 panel on XT60i + 1 panel on XT60i) stays inside 11 to 60 V and under 15 A, even at 20F.
2 x NextGen 220W Bifacial Portable Solar Panel1 panel on XT60i + 1 panel on XT60i
DELTA 3 PlusXT60i + XT60i
Expected
438W
Voltage at 20F
23.5V
limit 60 V
Current
12.4A
cap 15 A
- EcoFlow's manual: keep the total open-circuit voltage within 60V and the total short-circuit current within 15A on each input, or the station can be damaged.
- Short-circuit current is printed on the panel label as Isc. It is a little higher than the working current, so two panels in parallel usually go over 15A.
- If the solar icon on the screen flashes, the light is too weak or the voltage is too high or too low.
- When solar and wall power are both plugged in, the station uses solar first.
Cables to buy
- Use an MC4 to XT60i solar cable.
- You need this cabling once for each input.
Every wiring option
Series adds voltage. Parallel adds current. Split uses more than one input on the station.
| Wiring | Input | Volts at 20F | Amps | Watts | Verdict |
|---|---|---|---|---|---|
| 1 panel on XT60i + 1 panel on XT60i Best option | XT60i + XT60i | 23.5 | 12.4 | 438 | Works |
| 2 panels in series on XT60i | XT60i | 47.1 | 12.4 | 438 | Works |
| 2 panels in parallel on XT60i Total short-circuit current 24.8A is above the 15A the manual allows for this input. The manual says to stay within it to avoid damage. | XT60i | 23.5 | 24.8 | 0 | Don't connect |
Rules we applied
- EcoFlow DELTA 3 Plus: solar input 11 to 60 V on the Solar in 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 0.30% per °C below 77F (25°C), a typical figure, since this panel does not publish its own. At 20F one panel's 21.5 V becomes 23.5 V.
- EcoFlow says to keep the total short-circuit current (Isc) within 15 A on each input. Over it, we say Don't connect.
- 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 manualDELTA 3 Plus manual, solar input
From the brand's pageNextGen 220W Bifacial Portable Solar Panel label values
Checked Oct 27, 2026