Product descrition: Factorycode: ACER 4710 ReplaceP/N: AS07A31, AS07A32, AS07A51, AS07A72 Fit model: ACER Aspire 4315, 4520, 4520G, 4710, 4710G, 4720, 4720G, 4720Z, 4920, 4920G, ACER Aspire 4310 Series Laptop Battery Votage: 11.1V Capacity: 4800mAh Dimention: 208.2*52.4*20.0 Clour : Black Weight: 325g Type: Li-ion