Acer AS10D31,EBK 5200MAH 6-cell Battery for Acer AS10D31 AS10D3E AS10D41 AS10D51 AS10D61 AS10D71 AS10D73 [li-ion 6-cell 5200MAH] Battery type: Li-ion; Capacity: 5200mAh; Cells: 6-cell; Voltage: 10.8 V. Battery condition:Brand New,100% lapotp test and QC check before delivery Made by 2250mah+ high quality cell , stable performance which can charge-discharge more than 500-800 cycles.