Quickly and effectively solves the low power problem for your devices while on-the-go LED indicator shows the remaining power by pressing the switch This mobile phone battery case can not only charge the mobile phone, but also can protect the phone from scratches and other daily wear and tear Support over-current, over-voltage, over-charged, over-discharged and short circuit protection Soft TPU edge and hard ABS back material, provide your phone comprehensive protection Easy to install and remove, all buttons and controls are easy to use Specifications: Material: ABS + TPU Type: A-level lithium ion polymer battery Input current: 5V 1500mA Output current: 5V 2000mA Working temperature: 0��-45�� Battery capacity: 6000mAh Storage / transportation temperature: - 20��± 50�� Charging time: about 3.5 hours