Bay Valley Parts Replacement Laptop Battery for Dell Vostro 1710 1720 312-0740 312-0894 451-10611 P721 CP722C T117C Voltage: 11.10V ///Capacity: 4400mAh Battery Type: Li-ion///Color: Black Dimension: 270.90 x 50.00 x 20.20 mm//Weight: 425.04 g