NEW AceSoft 2680mAh R830 Battery for Samsung Galaxy Axiom,SCH-R830 U.S. Cellular CellPhone Battery type: Li-ion; Voltage: 3.8V; Capacity: 4000mAh Package includes : AceSoft 4000 mAh Rechargeable Li_ion Battery X 1. Compatible with: Samsung Galaxy Axiom,SCH-R830 ( U.S. Cellular ) Accessory only, cell phone not included. High Quality,100% Brand New.