SlimVolt SlimCard Phone Charger - Pocket Thin 2500 maH battery charger power bank for iPhone, iPad mini, Samsung Galaxy, Android (White) Thin, slim, and lightweight. The SlimCard slips into your pocket, wallet, purse, backpack, or glovebox. This powerful 2500 mAh battery is just larger than a credit card, just 4 pennies tall! Built-in micro USB cord and lightning adapter (Mfi certified). USB charging cord also included. Soft rubberized material won't scratch your phone's screen. Great feeling texture. For phones that die before the day is done, just bring along your SlimCard, and don't miss a beat.