The L17M3P51 is an original battery from Lenovo, specifically designed for use in laptops. With a capacity of 45 watt-hours (Wh) and a nominal voltage of 11.1 volts (V), this lithium-polymer battery provides a reliable power source for various Lenovo models. The battery features three cells and a total capacity of 4120 milliampere-hours (mAh), ensuring long-lasting performance. It serves as a replacement battery and is ideal for users looking to extend the runtime of their laptops. The L17M3P51 is a high-quality product that meets the demands of modern applications and supports sustainable use. By utilizing lithium-polymer technology, this battery offers a high energy density and improved safety compared to conventional battery types. The battery is easy to install and allows for seamless integration into your Lenovo laptop.