The Solio Solar Battery Packs are changing the game in solar powered devices. Two years ago the Solio battery pack was only able to charge your phone, but now this device has enough juice to power many of your USB rechargeable camping accessories including action cameras, water purification, and headlamps.
The Solio Solar battery packs capture the sunlight and suck up enough juice to power devices quickly. You can also charge it at home via the micro USB device before you leave. It will then store it for later, where you can charge on demand.