For van, truck and SUV campers who want 400 W from something that stows like a backpack. Owners of small power stations should check the voltage limit, and anyone who wants to prop a panel up on legs should look at a folding suitcase panel instead.
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
| Output | |
|---|---|
| Rated power | 400 W |
| Tested output | Not tested (estimated 87%) |
| Efficiency | 25% (cell efficiency as quoted by Renogy and on the Amazon listing; the manual gives no efficiency figure) |
| Cells | Monocrystalline (N-type, 16BB) |
| Bifacial | No |
| Electrical | |
| Open-circuit voltage (Voc) | 39.2 V |
| Voltage at max power (Vmp) | 33.6 V |
| Short-circuit current (Isc) | 13.1 A |
| Current at max power (Imp) | 11.9 A |
| Series / parallel | Yes |
| Connections | |
| Output connector | MC4 |
| USB ports | None |
| Build | |
| Weight | 16.1 lb (7.3 kg) |
| Folded size | 16.54 x 15.83 x 4.13 in |
| Unfolded size | 64.96 x 62.99 x 1.50 in |
| Water resistance | IP65 |
| Warranty | 2 years |
A low-cost 400 W folding panel for owners of large power stations who camp by the car or RV. The thin spec sheet means checking a station’s voltage limit before buying.
Amazon $322.99A 400 W folding panel for owners of large power stations that accept around 50 V of solar input. Small-station owners need a lower-voltage panel.
Amazon $399.99For owners of large power stations who want 400 W from a single panel set up beside a car or RV. Check that your station’s solar input handles about 48 V first.
Amazon $495.99 Renogy $495.99Compare the Renogy 400W N-Type Portable Solar Panel Blanket with any other portable solar panel →
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