The Ecosonique 100W Portable Solar Panel (UC-100A) and the Renogy 100W 12V Flexible Monocrystalline Solar Panel are evenly matched, rated 4.3 and 4.2. The Ecosonique 100W Portable Solar Panel (UC-100A) leads on efficiency and features. The Renogy 100W 12V Flexible Monocrystalline Solar Panel wins on durability and portability. The Ecosonique 100W Portable Solar Panel (UC-100A) costs $40 less ($85.99 vs $125.99).
A cheap, light 100 W panel for small power stations and direct USB charging on camping and hiking trips. Buyers who want a longer warranty or verified output should look elsewhere.
Amazon $85.99The default pick for a stealthy 100 W on a curved van, RV or boat roof where a framed panel will not fit. If the roof is flat and can take the weight, a rigid panel lasts longer for less money.
Amazon $125.99 Renogy $149.99Prices 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 | Ecosonique 100W Portable Solar Panel (UC-100A) | Renogy 100W 12V Flexible Monocrystalline Solar Panel |
|---|---|---|
| Overall rating | 4.3/5 | 4.2/5 |
| Value 30% | 100 $0.86 per rated watt | 98 $1.26 per rated watt |
| Tested output 20% | 89 not yet tested; estimated 87% of rated watts from the median of the 10 tested panels | 91 not yet tested; estimated 87% of rated watts from 1 test of Renogy panels and the median of the 10 tested panels |
| Portability 15% | 88 16.5 W per lb (6.1 lb (2.8 kg)) | 100 18.9 W per lb (5.3 lb (2.4 kg)) |
| Durability 15% | 36 IP65, 1-year warranty | 100 IP67, 5-year warranty |
| Efficiency 10% | 75 23.5% claimed efficiency | 0 15.7% claimed efficiency |
| Features 10% | 55 built-in kickstand, USB output | 0 no kickstand, USB or bifacial cells |
| Ecosonique 100W Portable Solar Panel (UC-100A) | Renogy 100W 12V Flexible Monocrystalline Solar Panel | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Tested output | Not tested (estimated 87%) | Not tested (estimated 87%) |
| Efficiency | 23.5% (cell efficiency per the Amazon listing's description; its spec table says 24%) | 15.7% (module efficiency per Renogy's spec table; the Amazon listing quotes 22%) |
| Cells | Monocrystalline | Monocrystalline (9BB) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | - | 24.4 V |
| Voltage at max power (Vmp) | 20 V | 20.7 V |
| Short-circuit current (Isc) | - | 5.2 A |
| Current at max power (Imp) | 5 A | 4.8 A |
| Connections | ||
| Output connector | - | MC4 |
| Cables included | 3 m DC5521 male-to-male cable, 0.5 m DC5521 to XT60 and Anderson cable, DC7909, DC5525 and DC35135 connectors | - |
| USB ports | 1x USB-C PD3.0 (max 45W), 1x USB-A QC3.0 (max 24W), plus a 20V DC output | None |
| Build | ||
| Weight | 6.1 lb (2.8 kg) | 5.3 lb (2.4 kg) |
| Flexible | - | Yes, bends up to 240° |
| Dimensions | - | 43.0 x 22.9 x 0.1 in |
| Folded size | 15.68 x 10.44 x 2.96 in | - |
| Unfolded size | 68.28 x 15.68 x 0.99 in | - |
| Kickstand | Yes | No |
| Water resistance | IP65 | IP67 |
| Warranty | 1 years | 5 years |
| Output warranty | - | at least 90% output for 5 years |
