Specification of A1990 Laptop Replacement BatteryModel Name: A1953 Battery, Capacity: 7400mAh/84.36Wh, Voltage: 11.4V, Battery Type: Li-Polymer Operating life and certificationCobalt Proportion: >98%. Upgrade chip - Up to 1500+ recharge cycles over the life of the battery, Long operating time after charging full with 7400mAh real high capacity, same with original battery A1953