BTI Notebook Battery 51Wh Rechargeable For NotebooksMeet the BTI Battery, a purpose built power solution designed to keep your notebook running longer and cleaner on the go. Engineered as a rechargeable notebook battery, this unit blends abundance of capacity with a compact, lighter footprint to support portable devices without sacrificing performance. With 4420 mAh of capacity and a total energy of 51 Wh at 11. 55 V, it delivers reliable, steady power across everyday tasks, from productivity apps to