Portable chargers ... solar panels built into backpacks. It's an ingenious idea that lets you harness the power of the sun while you go about your day, without having to stop every time your phone ...

Jason sent me his solar ipod charger how-to ... He put a 7805 regulator on a 6v 100ma flexible panel that he mounted on his backpack. I’ve seen this sort of thing on a shuffle before, but ...

Many chargers slip easily into your backpack, making them ideal for off-the-grid adventures. Beyond simply keeping your phone powered while you're away from the city, many solar panel phone ...