LB1 High Performance Battery for HP Compaq KS524AA Laptop Notebook Computer PC [4400mAh 10.8V 6Cells] HP Compaq KS524AA High Performance notebook battery utilizes high quality grade "A" cells for higher performance longer life and more reliability. HP Compaq KS524AA High Performance computer batteries meet and/or exceed OEM specification and will not void your original manufacturer warranty. Capacity: 4400 mAh / Chemistry: Li-ion / Voltage: 10.8 Volts / Cells: 6 / wHr: 48. Fast charging. Low power consumption. Built-in protection circuit ensures both safety and stability.