The black ReCharge battery fits neatly into your pocket. All you have to do is connect your USB charging cable to the USB port and press the power button. Play games, take camping, hiking or to festivals as an emergency backup. To charge the bank simply plug into any USB plug, you can even recharge it from a USB adapter in your car. As an iPhone certified product you know it is fully tested and approved by Apple. Fully charges a smartphone to 100% once. Comes with carry pouch and Micro USB cable. Charges batteries individually. 60 minutes. Charging indicators. Bad cell detection. Automatic timer cut-off. Over-charge protection. Short circuit protection. Reverse polarity protection. 12V DC (car) charging. Pre-charged 2500mAh . Batteries not included. Manufacturers 2 year guarantee.