The Lenovo (5B11D64649) Battery is an essential power source designed specifically for Lenovo laptops, featuring a voltage of 7.72V and a capacity of 42Wh. With its four-cell configuration, this rechargeable battery ensures that you have ample power for your computing needs, whether for work, entertainment, or study. Lenovo is renowned for its innovative technology and commitment to quality, making this battery a perfect choice for professionals and students alike who require reliable performance. The design of this battery prioritizes efficient energy usage, offering extended usage times between charges. This product not only provides an excellent replacement for your older battery but also aligns with Lenovo's vision of delivering high-performance solutions that empower users to stay productive without being tethered to an outlet. Investing in this battery means investing in the longevity of your device, ensuring that you can meet your daily demands with confidence.