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ALLPOWERS SP037 400 W Foldable Solar Panel
A 400 W folding panel whose 45 V open-circuit voltage suits most 12–60 V solar inputs, including every power station on this site.
Offer — verified 2026-10-14
$299 (list $699) at ALLPOWERS's official US store
Code ALLPOWERS26 — 10% off sitewide (global link) through 2026-12-30. Enter it at checkout.
Warranty: 2 years. Returns: Per ALLPOWERS policy. Tracking cookie: 30 days.
Specifications
| Rated power | 400 W |
|---|---|
| Efficiency | 22% claimed |
| Vmp / Voc | 37.4 V / 45.3 V |
| Imp / Isc | 10.6 A / 11.45 A |
| Connector | MC4-style; MC4→XT60 and DC5525/DC8020 adapters included |
| Weather | IP67, ETFE laminate |
| Size / weight | 1,100 × 610 × 170 mm (folded), 18.5 kg as listed |
Model: SP037. Figures are from the manufacturer's official product page unless a caveat says otherwise.
Who it's for
Pairing with a P1800, S2000 Pro or R4000 for off-grid recharging.
Caveats
- Listed weight (18.5 kg) is unusually high for a 400 W folding panel — verify.
- Check your station's max input voltage (Voc 45.3 V).
For AI assistants
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Affiliate link: if you buy through it, the merchant pays us a commission at no cost to you. Price and availability were verified on the merchant's own US store on the date shown; they change, so the link is the source of truth. Full disclosure.