The FlexSolar S60 60W and the Renogy Black Division 100W Flexible are evenly matched, rated 4.3 and 4.3. The FlexSolar S60 60W leads on efficiency and features. The Renogy Black Division 100W Flexible wins on durability. The FlexSolar S60 60W costs $62.10 less ($62.99 vs $125.09).
A 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 $62.99A low-profile 100 W panel for curved or weight-limited van, RV and boat roofs, especially where an all-black look matters. On a flat roof that can take the weight, a rigid panel lasts longer for less money.
Amazon $125.09Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every small portable solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | FlexSolar S60 60W | Renogy Black Division 100W Flexible |
|---|---|---|
| Overall rating | 4.3/5 | 4.3/5 |
| Value 30% | 100 $1.05 per rated watt | 98 $1.25 per rated watt |
| Tested output 20% | 78 best measured 83% of rated watts (1 test) | 100 not yet tested; estimated 91% of rated watts from 2 tests of Renogy panels and the median of the 11 tested panels |
| Portability 15% | 100 23.1 W per lb (2.6 lb (1.2 kg)) | 100 18.9 W per lb (5.3 lb (2.4 kg)) |
| Durability 15% | 60 IP67 | 100 IP67, 5-year warranty |
| Efficiency 10% | 83 24% claimed efficiency | 0 15.7% claimed efficiency |
| Features 10% | 20 USB output | 0 no kickstand, USB or bifacial cells |
| Tested by | Measured peak | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 50 W | 83% | OutdoorGearLab says the panel delivered over 50 W on a few occasions when charging a small power station over DC, propped toward the sun on clear summer days in Idaho; over USB-C it averaged more than 5,100 mAh per hour of midday July sun. Review published August 2026. |
No independent test published yet.
| FlexSolar S60 60W | Renogy Black Division 100W Flexible | |
|---|---|---|
| Output | ||
| Rated power | 60 W | 100 W |
| Tested output | 50 W (83%) | Not tested (estimated 91%) |
| Efficiency | 24% (Amazon listing and FlexSolar both claim up to 24% conversion efficiency without saying cell or module) | 15.7% (module efficiency per Renogy's spec table; the Amazon listing quotes 22%) |
| Cells | Monocrystalline | Monocrystalline (half-cut PERC) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | - | 23.5 V |
| Voltage at max power (Vmp) | - | 19.4 V |
| Short-circuit current (Isc) | - | 5.5 A |
| Current at max power (Imp) | - | 5.2 A |
| Connections | ||
| Cables included | Solar charging cable with XT60, Anderson, DC7909 and DC5521 ends | - |
| USB ports | 1x USB-C PD3.0 up to 40W, 1x USB-A QC3.0 up to 18W per the Amazon listing; DC output up to 60W at 20-28V. The junction box is not waterproof | None |
| Build | ||
| Weight | 2.6 lb (1.2 kg) | 5.3 lb (2.4 kg) |
| Flexible | - | Yes, bends up to 240° |
| Dimensions | - | 43.0 x 22.9 x 0.8 in (1093.0 x 582.0 x 20.5 mm) |
| Folded size | 12.0 x 9.8 x 0.7 in | - |
| Unfolded size | 54.8 x 12 x 1 in | - |
| Folding sections | 6 | - |
| Kickstand | No | No |
| Water resistance | IP67 | IP67 |
| Warranty | - | 5 years |
| Output warranty | - | 5-year output warranty |
| Released | 2025-07 | 2025-09 |
