The Renogy Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel is the better portable solar panel overall, rated 4.5 to 4.2. The Renogy Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel leads on value and portability. The Anker SOLIX PS100 Bifacial Portable Solar Panel wins on features. The Renogy Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel costs $100 less ($149.99 vs $249.99).
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 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 21, 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 Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel | Anker SOLIX PS100 Bifacial Portable Solar Panel |
|---|---|---|
| Overall rating | 4.5/5 | 4.2/5 |
| Value 30% | 89 $1.50 per rated watt | 54 $2.50 per rated watt |
| Tested output 20% | 91 not yet tested; estimated 87% of rated watts from 1 test of Renogy panels and the median of the 10 tested panels | 89 not yet tested; estimated 87% of rated watts from the median of the 10 tested panels |
| Portability 15% | 100 23.9 W per lb (4.2 lb (1.9 kg)) | 84 16.1 W per lb (6.2 lb (2.8 kg)) |
| Durability 15% | 100 IP68, 3-year warranty | 100 IP68, 5-year warranty |
| Efficiency 10% | 100 25% claimed efficiency | 100 25% claimed efficiency |
| Features 10% | 0 no kickstand, USB or bifacial cells | 60 built-in kickstand, bifacial |
| Renogy Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel | Anker SOLIX PS100 Bifacial Portable Solar Panel | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Tested output | Not tested (estimated 87%) | Not tested (estimated 87%) |
| Efficiency | 25% (cell efficiency ("up to 25%")) | 25% ("25%+ conversion efficiency" per Anker; cell vs module not stated) |
| Cells | Monocrystalline (N-type TOPCon, cell-level bypass diodes (ShadowFlux)) | - |
| Bifacial | No | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 33.6 V | - |
| Voltage at max power (Vmp) | 28.8 V | 21.6 V |
| Short-circuit current (Isc) | 3.7 A | - |
| Current at max power (Imp) | 3.5 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 | 4.2 lb (1.9 kg) | 6.2 lb (2.8 kg) |
| Flexible | Yes, bends up to 270° | - |
| Dimensions | 37.09 x 24.13 x 0.10 in | - |
| 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 | IP68 | IP68 |
| Warranty | 3 years | 5 years |
| Output warranty | 3-year power output warranty | - |
