Never be caught with a dead battery again. The Arc Charger provides just the solution in a slim and sleek design. The Li-Polymer battery provides 3,000 mAh and a 5V/1A USB output which means it will charge at the same rate of most wall chargers. Includes a USB to Micro USB charging cable which can recharge the power bank or can be used to charge up devices with a Micro USB input like Android Smartphones from Samsung, Motorola, HTC, Nokia and others.