Product descrition: Factorycode: HP DV4 ReplaceP/N: HSTNN-UB72 Fit model: Pavilion DV4 series DV4T DV4Z DV4-1000 DV4-1020 DV4-1028 Series Laptop Battery Votage: 10.8V Capacity: 4400mAh Dimention: 205.20 x 59.20 x 37.50 mm Clour: Black Weight: 325g Type: Li-ion