EcoFlow RIVER 2 Max 500: solar specs and wiring limits

What are the EcoFlow RIVER 2 Max 500 solar input limits?
EcoFlow RIVER 2 Max 500 solar limits: Solar Input accepts 11 to 50 V at up to 13 A. Total solar input peaks at 220 W. Stay inside that window on your coldest morning, because voltage rises as panels cool and exceeding the maximum can damage the station.
| Capacity | 499 Wh | us.ecoflow.com“499Wh capacity and 500W output.” |
|---|---|---|
| AC continuous | 500 W | us.ecoflow.com“120V 50Hz/60Hz, 500W (Surge 1000W)” |
| AC surge | 1,000 W | us.ecoflow.com“120V 50Hz/60Hz, 500W (Surge 1000W)” |
| Solar Input | 11 to 50 V, 13 A, 220 W | us.ecoflow.com“11-50V, 13A, 220W Max” |
| Solar Input connector | XT60i | us.ecoflow.com“Works best with RIVER 2/RIVER 2 Max/RIVER 2 Pro” |
Which solar panels work best with the EcoFlow RIVER 2 Max 500?
Among the panels we’ve verified, the EcoFlow NextGen 220W Bifacial delivers the most, at about 220 W wired 2S1P on Solar Input, using four panels at most. The table below ranks all 6 by deliverable power at −10 °C, with no brand preference or sponsored placement.
| Panel | Best layout | Watts | Verdict |
|---|---|---|---|
| EcoFlow NextGen 220W Bifacial | 2S1P on Solar Input | 220 | Works with the right cable |
| EcoFlow 100W Rigid | 2S2P on Solar Input | 220 | Works with the right cable |
| Renogy 200W N-Type Portable | 2S1P on Solar Input | 220 | Works with the right cable |
| Renogy 100W Flexible | 1S2P on Solar Input | 200 | Works with the right cable |
| EcoFlow 45W Portable | None | 0 | Unverified |
| Jackery SolarSaga 200W | None | 0 | Unverified |
What can the EcoFlow RIVER 2 Max 500 run on AC power?
The EcoFlow RIVER 2 Max 500 is rated at 500 W continuous and 1,000 W surge, with 499 Wh of storage. The table shows cautious runtime using a 0.70 usable-capacity factor and typical loads. Open any row to enter your own appliance’s nameplate figures.
| Appliance | Cautious | Surge check |
|---|---|---|
| CPAP machine | 8.7 hr | Pass |
| household refrigerator | 5.3 hr | Fail |
| portable compressor fridge | 17 hr | Pass |
| 1/3 HP sump pump | 2.9 hr | Over continuous rating |
| 1,000 W microwave | 0.2 hr | Over continuous rating |
| 8,000 BTU window AC | 0.8 hr | Over continuous rating |