Yesoo Samsung Galaxy S3 4300mAh Extended Battery With White Cover, 3Pcs Screen Protectors, Exclusive Aluminum Touch Pen And Black And Green Key Chain Kit (Compatible with Samsung Galaxy S III GT-i9300, AT&T Samsung Galaxy S3 Samsung i747, Verizon Samsung Galaxy S3 Samsung i535, T-mobile Samsung Galaxy S3 Samsung T999, U.S. Cellular Samsung Galaxy S3 R530, and Sprint Samsung Galaxy S3 L710, MetroPcs Samsung Galaxy S3) Cell type: Lithium-ion Voltage: 3.7V Capacity: 4300mah Protect your cell phone from Scratch with Screen Protectors Battery life will vary depending on your specific hardware and software configurations and network conditions.