BTI Notebook BatteryPower your notebook with dependable energy using the BTI Notebook Battery. Engineered for devices that require a proprietary battery size, this rechargeable Li Ion cell delivers consistent performance, extended run times, and reliable power when you need it most. With a capacity of 5200 mAh and a nominal output of 10. 8 V, it strikes a careful balance between energy density and weight, so you can stay productive without frequent recharges disrupting