Never see the low battery warning on your device when on the go, thanks to the ChargeTech 10000mAh power bank. Packing a high-density lithium ion polymer battery, it holds up to a maximum capacity of 10000mAh to recharge your phone as well as your tablet. Its two USB output ports enable you to power two devices simultaneously. | ChargeTech 10000 mAh Dual USB Power Bank - Black