The 12,000mAh Rechargeable Backup Battery from iBower is a portable rechargeable battery pack with a capacity of 12,000mAh that allows you to charge up to two devices simultaneously with its dual USB ports. While this iBower backup battery is compatible with virtually all devices that may be charged via USB, it has been designed for use with phones, tablets, and gaming devices. The iBower 12,000mAh Rechargeable Backup Battery includes a USB charging cable which is used to recharge its internal battery. In order to recharge your device, you will need to use your device's standard charging cable. This iBower device is also protected by a limited 1-year warranty.