Pisen Universal Battery Charger II with USB Port - Multi-Purpose USB Travel Wall Charger - Portable Cell Phone Battery Charger for iPhones, iPods, Samsung, Galaxy, HTC, and Other Smartphone Devices &ndash; Foldable A/C Plug Charges Spare Battery Through Wall Outlet - Phone Charges Through USB Port (TS-UC020) Ultra-portable, compact design and multiple power source options makes this charger great for travel This convenient charger allows you to charge your spare battery through a wall outlet while charging your phone through the USB port Battery provides fast charge and comes with foldable A/C plug for easy portability Automatically protects against overcharging battery. Automatically stops when battery is full Recommended for most mainstream brands of mobile phones