For owners of small power stations who value a sturdy, long-warranty 100 W panel from a major brand. Shoppers chasing the lowest price per watt or USB charging can do better.
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 | 100 W |
| Tested output | Not tested (estimated 87%) |
| Efficiency | 24.8% (cell efficiency per Renogy's spec table, which lists module efficiency as 15.2%; marketing copy rounds it to 25%) |
| Cells | Monocrystalline (N-type, 16BB) |
| Bifacial | No |
| Electrical | |
| Open-circuit voltage (Voc) | 21.6 V |
| Voltage at max power (Vmp) | 18.7 V |
| Short-circuit current (Isc) | 5.8 A |
| Current at max power (Imp) | 5.4 A |
| Series / parallel | Yes |
| Connections | |
| Output connector | MC4 |
| USB ports | None |
| Build | |
| Weight | 8.9 lb (4 kg) |
| Folded size | 20.6 x 24.6 x 1.6 in (523 x 625 x 40 mm) |
| Unfolded size | 1048 x 625 x 20 mm |
| Kickstand | Yes |
| Water resistance | IP67 |
| Warranty | 3 years |
| Output warranty | 3-year power output warranty |
For curved roofs with vents, racks or antennas that shade part of the panel during the day. With clear sun on an open roof, Renogy’s standard 100 W flexible panel costs less.
Amazon $149.99 Renogy $172.99A plug-and-play 100 W panel for owners of small power stations who want every common adapter in the box and USB ports for direct charging. It is about 1.5 lb lighter than ZOUPW’s older F100W.
Amazon $99.99 ZOUPW $109.99A light, packable panel for campers who mainly charge phones, power banks and small power stations, and it did well in independent testing. Anyone filling a larger station should step up to 100 W or more.
Amazon $62.99 FlexSolar $69.99More from Renogy: every Renogy product ranked.
