GooDGo(TM) Premium Stand and Spare Battery Charger For Samsung Galaxy S3 (Included 2100mAh Battery) The phone groove allows you to use the Spare Battery Charging System as a stand to display your phone in a comfortable reading or viewing angle while your spare battery charges. Compatible With: Samsung Galaxy S3 Convenience at Your Fingertips New brand and high quality The compact and durable design makes it convenient to charge your spare battery at home or in the office to give you extra time to talk, text or email