5B10W51820 - Lenovo Laptop Battery - Genuine

This Lenovo Laptop Battery (5B10W51820) is a genuine part specifically designed for Lenovo laptops. Compatible exclusively with Lenovo, this rechargeable internal battery features a lithium-ion (Li-ion) composition, offering a capacity of 54.7Wh across four cells. Also known as an 'internal battery,' '4c battery,' or 'Li-ion battery,' this part is essential for providing the power your laptop needs to operate effectively.

In terms of operation, this battery serves as the primary source of power for your Lenovo laptop when it's not connected to an external power source. Its lithium-ion technology ensures efficient charging and long-lasting power retention, making it an indispensable component for those who rely on their laptop's mobility and uptime. If you notice your Lenovo laptop not holding a charge as long as it used to, displaying error messages related to the battery, or not powering up at all, it might be time to consider replacing the battery.

Before purchasing, please check your device's model number to confirm compatibility with the 5B10W51820 battery. This step ensures that the Lenovo Laptop Battery you're considering will indeed fit and function properly within your laptop.

iFixit is an official Lenovo partner. Our Genuine Lenovo parts are supplied by the official Lenovo supply chain.