The Renogy Black Division 100W Flexible and the Anker SOLIX PS100 Bifacial are evenly matched, rated 4.3 and 4.2. The Renogy Black Division 100W Flexible leads on value and portability. The Anker SOLIX PS100 Bifacial wins on efficiency and features. The Renogy Black Division 100W Flexible costs $124.90 less ($125.09 vs $249.99).
A 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 $125.09A light, weatherproof 100 W panel for small power stations on camping trips. Pick it over cheaper 100 W panels if the IP68 build and five-year warranty matter to you.
Anker SOLIX $249.99Prices 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 | Renogy Black Division 100W Flexible | Anker SOLIX PS100 Bifacial |
|---|---|---|
| Overall rating | 4.3/5 | 4.2/5 |
| Value 30% | 98 $1.25 per rated watt | 54 $2.50 per rated watt |
| Tested output 20% | 100 not yet tested; estimated 91% of rated watts from 2 tests of Renogy panels and the median of the 11 tested panels | 92 not yet tested; estimated 88% of rated watts from the median of the 11 tested panels |
| Portability 15% | 100 18.9 W per lb (5.3 lb (2.4 kg)) | 84 16.1 W per lb (6.2 lb (2.8 kg)) |
| Durability 15% | 100 IP67, 5-year warranty | 100 IP68, 5-year warranty |
| Efficiency 10% | 0 15.7% claimed efficiency | 100 25% claimed efficiency |
| Features 10% | 0 no kickstand, USB or bifacial cells | 60 built-in kickstand, bifacial |
| Renogy Black Division 100W Flexible | Anker SOLIX PS100 Bifacial | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Tested output | Not tested (estimated 91%) | Not tested (estimated 88%) |
| Efficiency | 15.7% (module efficiency per Renogy's spec table; the Amazon listing quotes 22%) | 25% ("25%+ conversion efficiency" per Anker; cell vs module not stated) |
| Cells | Monocrystalline (half-cut PERC) | - |
| Bifacial | No | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 23.5 V | - |
| Voltage at max power (Vmp) | 19.4 V | 21.6 V |
| Short-circuit current (Isc) | 5.5 A | - |
| Current at max power (Imp) | 5.2 A | 4.6 A |
| Connections | ||
| Cables included | - | 2x 8.2 ft (2.5 m) solar charging cable, 1.6 ft (0.5 m) XT60i solar charging cable |
| USB ports | None | - |
| Build | ||
| Weight | 5.3 lb (2.4 kg) | 6.2 lb (2.8 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 | - | 20.1 x 23.6 x 2.5 in |
| Unfolded size | - | 40.6 x 23.6 x 0.7 in |
| Kickstand | No | Yes |
| Water resistance | IP67 | IP68 |
| Warranty | 5 years | 5 years |
| Output warranty | 5-year output warranty | - |
| Released | 2025-09 | 2026-06 |
