The Kanex 8,000mAh GoPower Battery (Space Gray) offers premium performance charging power encased in a sleek and stylish aluminum finish. This durable yet slim profile easily fits in your pocket or bag so you always have power when you need it. With a 8,000mAh battery capacity, GoPower can charge your iPhone 7 up to 2 times before it needs to be recharged. The smart charging technology provides your device with up to 2 amps of power for a quick charge while the built-in surge protection feature keeps your devices safe. It has a built-in micro USB cable with an integrated Apple-certified Lightning adapter so you can charge either iOS or Android devices without having to bring an additional cable. It can charge 2 devices simultaneously.