EC TECHNOLOGY 1 x 2300mAh Li-ion Battery for Samsung Galaxy Nexus Samsung I515, AT&T Samsung Galaxy S2 II Skyrocket Samsung SGH-I727, T-mobile Samsung Galaxy S2 II Samsung T989, Telus Samsung Galaxy S2 II X Samsung T989D, Sprint Samsung Galaxy Nexus SPH-L700, Google Galaxy Nexus, Nexus Prime Without NFC/ Google Wallet [ Not Compatible With Samsung Galaxy Nexus I9250, Not Compatible With Galaxy S2 I9100 ] Type: Li - ion battery; Voltage: 3.7V. Capacity: 2300mAh, more than 500 charge cycles Compatible with various devices: Verizon Samsung Galaxy Nexus Samsung I515, AT&T Samsung Galaxy S2 II Skyrocket Samsung SGH-I727 Made with Grade A Li-ion cells; Built-in circuit protection; Certified by CE / RoHS Package:1xbattery