The ReCharge battery fits neatly into your bag or pocket. Play games, take camping, hiking or to festivals as an emergency backup. Easy to use simply connect the built-in cable to your iPhone or iPod and press the power button. To charge the bank simply plug the built-in USB cable 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. The powerful Li-Polymer battery built-in can charge an iPhone 6 up to 1.7x and iPhone 6 Plus up to 1x. 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 4000mAh . Batteries not included. Manufacturers 2 year guarantee.