Li-ion Battery for Acer um08a31 um08a51 um08a71 um08a72 um08a73 um08a74 um08b74 Aspire aoa110-1626 150-1542 Battery Type : Lithium-Ion - Capacity : 48840 mW-h - Voltage: 11.1V This Product has 12 Months Replacement Warranty 100% OEM compatible Package Includes : 1 pcs laptop battery