11.10V,4400mAh,Li-ion, Replacement Laptop Battery for ACER Extensa 3100, 4130, 4220, 4230, 4420, TravelMate 4320, 4330, 4335, 4520, 4720, 6452, ACER Aspire 2420, 2920, 2920Z, 3620, 4620, 5540, 5550, 5560 Series, ACER Extensa 4120, 4630 Series, TravelMate 2420, 2440, 3010, 3240, 3250, 3280, 3300, 4730, 6231, 6252, 6291, 6292, 6293, 6492, 6493, 6553, 6593 Series, Compatible Part Numbers: AK.006BT.021, BT.00603.012, BT.00603.039, BT.00603.040, BT.00603.044, BT.00604.005, BT.00604.006, BT.00604.017, BT.00604.027, BT.00605.006, BT.00605.007, BT.00607.003, BT.00607.009, BTP-AMJ1, BTP-ANJ1, BTP-AOJ1, BTP-APJ1, BTP-AQJ1, BTP-ARJ1, BTP-AS3620, BTP-ASJ1, BTP-B2J1, GARDA31, GARDA32, LC.BTP00.021, LC.BTP01.010, LC.TG600.001, MS2180 Voltage: 11.10V ///Capacity: 4400mAh Battery Type: Li-ion///Color: Black Dimension: 202.10 x 42.90 x 20.35 mm///Weight: 425.25 g