More Specs. The $599.99 Anker Nebula Solar Portable fits a lot of features into a small package. Fully portable, thanks to a built-in rechargeable battery that can outlast most full-length movies ...

The batteries even approach the level of most commercially available solar panels at 15-17 percent — with portability to boot. Even while achieving this new efficiency record, lead author Song ...

The rechargeable LiFe batteries of the P2001 offer up to 3,500 recharge cycles with optimal power output maintained. The low flammable shield protection is also featured in the power station.

The Sun Drive offers USB storage and solar charging in a single portable device. ... 8 and 16 GB it also houses a rechargeable 400mA Li-Polymer battery, ...