The Battery Technology BTI notebook battery is designed to provide reliable power with a capacity of 4510 mAh and a voltage of 15.52 V. This lithium-ion battery features a 4-cell configuration which enhances its overall efficiency and longevity. Compatible with Lenovo 5B11F52558, this battery is engineered to meet the demands of your notebook, ensuring that you stay productive without interruptions. With a total capacity of 70 Wh, this battery ensures ample power supply for your device, making it suitable for both everyday tasks and extended use. Designed for easy installation and compatibility, the BTI notebook battery is a choice for maintaining the performance of your laptop while providing a blend of durability and reliability.