BND&reg; Ultra High Capacity [with Samsung Cells] Laptop Battery for Acer Aspire 2930 4220 4310 4310G 4315 4320 4520 4530 4520G 4710 4710G 4710Z 4715 4715Z 4720 4720G 4720Z 4920 4920G 4935 5332 5516 5535 5536 5735z - [fits P/N AS07A31 AS07A32 AS07A41 AS07A42 AS07A51 AS07A52 AS07A71 AS07A72 BT.00603.036 BT.00604.015 BT.00604.022 BT.00605.018 BT.00607.012 BT.00607.013 BTP-AS4520G MS2219 MS2220 Z01 Z03] - 24 Months Warranty [9-Cell 7800mAh/87Wh]