vintrons (TM) Bundle - 1300mAh Battery For SAMSUNG SCH-U640, Convoy U640, SCH-U640EKAVZW, U640 Convoy, + vintrons Coaster Volts: 3.7V / Capacity: 1300mAh / 4.81Wh Type: Li-ion Size : 52.30 x 33.20 x 6.50mm Package Include: Replacement Battery and vintrons Coaster vintrons and the vintrons logo are trademarks of Vintrons Company Ltd.