The BigBlue SolarPowa150 150W Portable Solar Panel and the TWELSEAVAN 150W HPBC Portable Solar Panel are evenly matched, rated 4.5 and 4.5. The BigBlue SolarPowa150 150W Portable Solar Panel leads on features. The TWELSEAVAN 150W HPBC Portable Solar Panel wins on durability. The BigBlue SolarPowa150 150W Portable Solar Panel costs $10 less ($139.99 vs $149.99).
A light, well-priced 150 W panel for small to mid-size power stations that accept 12-20 V solar input. Owners of large stations needing higher voltage should pick a 200 W-plus panel instead.
Amazon $139.99A light, compact 150 W panel for small and mid-size power stations on camping trips. Buyers who plan to chain panels together should pick one that supports it.
Amazon $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 mid-size portable solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | BigBlue SolarPowa150 150W Portable Solar Panel | TWELSEAVAN 150W HPBC Portable Solar Panel |
|---|---|---|
| Overall rating | 4.5/5 | 4.5/5 |
| Value 30% | 98 $0.93 per rated watt | 95 $1.00 per rated watt |
| Tested output 20% | 89 not yet tested; estimated 87% of rated watts from 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 18.3 W per lb (8.2 lb (3.7 kg)) | 99 17.9 W per lb (8.4 lb (3.8 kg)) |
| Durability 15% | 60 IP68 | 76 IP65, 3-year warranty |
| Efficiency 10% | 100 25% claimed efficiency | 100 25.8% claimed efficiency |
| Features 10% | 55 built-in kickstand, series/parallel | 35 built-in kickstand |
| BigBlue SolarPowa150 150W Portable Solar Panel | TWELSEAVAN 150W HPBC Portable Solar Panel | |
|---|---|---|
| Output | ||
| Rated power | 150 W | 150 W |
| Tested output | Not tested (estimated 87%) | Not tested (estimated 87%) |
| Efficiency | 25% ("conversion rate of up to 25%" per the Amazon listing; not stated whether cell or module) | 25.8% (cell efficiency, listed as 'up to 25.8%' on the Amazon listing) |
| Cells | Monocrystalline (N-type) | - |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 20.8 V | 25.2 V |
| Voltage at max power (Vmp) | 17.4 V | 21.6 V |
| Short-circuit current (Isc) | 9.2 A | 7.4 A |
| Current at max power (Imp) | 8.6 A | 6.9 A |
| Series / parallel | Yes | No |
| Connections | ||
| Output connector | MC4 | MC4 |
| Cables included | MC4 to DC5521/8020/7909/XT60 adapter cable | 9.8 ft 5-in-1 MC4 cable (Anderson, XT60i, DC8020, DC7909, DC5521), 3 DC adapters |
| USB ports | None | - |
| Build | ||
| Weight | 8.2 lb (3.7 kg) | 8.4 lb (3.8 kg) |
| Folded size | 20.79 x 22.8 x 1.38 in | 25.9 x 23.2 x 0.9 in |
| Unfolded size | 56.73 x 22.8 x 0.14 in | 52.1 x 23.2 x 0.2 in |
| Kickstand | Yes | Yes |
| Water resistance | IP68 | IP65 |
| Warranty | - | 3 years |
