If you’re the outdoorsy type that likes to haul around your gadgets on camping trips you might want to check out Chinavision’s 20,000 mAh solar battery. The battery comes with 19 adapters for most mobile PCs and phones. It takes about three hours to charge this battery through an AC outlet and up to 10 hours to charge it under bright sunlight.
This battery can charge a standard notebook battery about four times and a smartphone’s battery about 10-15 times. It’s available for $148 from Chinavision.