#8 on this list
SolarPanel 5+
BioLite
The SolarPanel 5+ stores power in a 3,200 mAh battery, so you can charge at night from what you collected during the day. **Highlights** - Built-in 3,200 mAh battery - Measured 4.9 W in sun - Available when checked **Watch-outs** - 5 W only - Micro-USB input - IPX4 only Research only: Wild10 has not field tested this model. Specifications come from the maker page; any measured figure is credited to the outlet that measured it.
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#9 on this list
SolarPanel 10+
BioLite
The SolarPanel 10+ adds a buffer battery to a 10 W folding panel, which smooths charging when clouds pass. **Highlights** - Built-in 3,200 mAh buffer - Folding design - Available when checked **Watch-outs** - Measured only 5 W in sun - Heavy - Micro-USB input Research only: Wild10 has not field tested this model. Specifications come from the maker page; any measured figure is credited to the outlet that measured it.
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Specs side by side
| Spec | SolarPanel 5+ | SolarPanel 10+ |
|---|---|---|
| Rated panel power | 5 W | 10 W |
| Ports | 1 x USB-A out, Micro-USB in | 1 x USB-A out, Micro-USB in |
| Built-in battery | 3,200 mAh | 3,200 mAh |
| Weight | 13.76 oz (390 g) per maker | 1.21 lb (550 g) per maker |
| Water rating | IPX4 per maker | IPX4 per maker |
| Measured output | 4.9 W USB-A sun (Outdoor Life) | 5 W USB-A sun (Outdoor Life) |
| Wild10 evidence | Research only, not field tested | Research only, not field tested |
| Best for | Panel with a built-in reserve | Buffered folding option |
What our reviewers liked and didn't
SolarPanel 5+
- Built-in 3,200 mAh battery
- Measured 4.9 W in sun
- Available when checked
- 5 W only
- Micro-USB input
- IPX4 only
SolarPanel 10+
- Built-in 3,200 mAh buffer
- Folding design
- Available when checked
- Measured only 5 W in sun
- Heavy
- Micro-USB input
Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.