The battery pack is an 11 Watt hour universal charger for handheld electronics. It can be recharged using the solar panels in the bag, the included USB Power Cable or the optional AC travel charger or car charger. Using the included adapters, you can transfer power stored in the battery pack to your device whenever you need it.
Works with Nearly All Handheld Electronics: USB socket in the battery produces 5 Volts, the amount required by Virtually all cell phones, iPhones, Blackberries, MP3 players, GPS Systems and portable gaming devices.
Lightweight: Uses Lithium-Polymer cells and weighs less than 4 ounces.
Fast Charging from Solar: Efficiently charges from a Voltaic solar panels under a range of lighting conditions.