FrontTech 2100mAh OEM Battery+ Dock Charger For Samsung Galaxy S3 I9300 I747 L710 I535 (B3C1) High-quality and rechargeable lithium-ion cell, long conversation and standby time long working life and excellent security. Integrated microchip prevents overcharging & lengthens battery life. Rechargeable with no memory effect Stylish designmade by third party Capacity : 2100mAh