These Portable Power Sources Will Keep Your Gadgets Going While You're Afield
Bushnell SolarWrap Mini
This charger features dual lithium-ion batteries and flexible solar panels that roll up into a compact, lightweight package. The battery charge time is 10 hours with the solar panels or four hours from a wall outlet. On a single charge, the five-watt unit can juice up one smartphone, two MP3 players, or two and a half cameras or GPS units.