The Magnetyze Mobile Battery is the ideal way to get additional backup battery power for your smartphone. It contains an 1800mAh Li-Ion battery and will recharge your phone one to two times. The Mobile Battery has an integrated magnetic connector that attaches magnetically to any Magnetyze case (iPhone or Android) for instant power - nothing to plug in. When you are ready to recharge the Mobile Battery simply connect it to the Magnetyze charging cable or any other Magnetyze charging base for instant full speed recharging. Additionally, it can be recharged with the included USB cable from a laptop or any USB power source. The Mobile Battery also has a micro USB port so it can be used to charge mobile devices that do not have the Magnetyze case.