The WakaWaka Power 10 is the perfect powerbank for power-lovers everywhere. With a 10,000 mAh battery capacity it can charge your average smartphone 5 times. Like the Power 5 it also has 3 USB ports for simultaneous charging and a solar panel charging port, giving you the option of using with the WakaWaka Solar Panel to charge your powerbank wherever you are.As well as being anincredible energy-efficient device and a fantastic addition to any adventurer's kit, Waka Wakais changing lives and livelihoods in developing countries. Every purchase helps to bring light and power tosome of the 1 billion+people without access to electricity.An alternative to open, smoky fires and toxic kerosene lamps, solar energy combats climate change while improving peoples health and safety. What's it made of? Lithium polymer battery How big is it?12 x 8 x 3 cm(Eco-friendly book packaging 22 x 16 x 4 cm)