Samsung Galaxy S3 Spare Battery Charger Convenient for your smartphone mobile life (2100mAh Battery Included) Black Samsung Galaxy S3 Spare Battery Charger (2100mAh Battery Included). Compact Charging and Carrying Case for Spare Battery. Includes Micro USB Travel Adapter which is also Charges Micro USB Compatible Mobile Phones. Converts to Convenient Media Viewing Stand for Watching Videos and Movies in Portrait or Landscape Mode. This Samsung phone accessory is made with portability in mind and doubles as a durable protective case so your spare charged battery will be there for you when you need it. The case is compact and can slip in to a small purse, bag, briefcase or pocket.