SpecificationsBattery Model: AP21A8T Rechargeable Battery, Voltage: 15.4V, Capacity: 90.61Wh 5716mAh , Cells:8-cell, Type: Li-ion Battery, Package include: 1*AP21A8T battery 1 set matching installation tools. 1*Instructions for AP21A8T Battery for AP21A8T battery, All our products are 100% brand-new from manufacturer. Up to 500 recharge cycles over the life of the battery Replacement for Part NumberAP21A7T AP21A8T AP21A5T KT0040G014