5B11M90037 Lenovo Internal lithium-ion battery, 4-cell design, 86Wh capacity, 15.44V voltage, compatible with Lenovo laptops. 86 Wh Internal lithium-ion battery, 4-cell design, 86Wh capacity, 15.44V voltage, compatible with Lenovo laptops.Ensure uninterrupted productivity with the Lenovo internal lithium-ion battery. This robust 4-cell battery offers an impressive capacity of 86Wh, providing lasting power for your Lenovo IdeaPad series laptops. Designed with a voltage of 15.44V and a capacity of 5570mAh, it delivers reliable performance, enabling you to tackle demanding tasks without the worry of battery drain.Crafted specifically for compatibility with various Lenovo models, this original battery guarantees optimal performance and longevity. Its black finish complements your laptop, maintaining a sleek appearance. With a 12-month warranty, you can trust the integrity and durability that comes with the Lenovo brand.EET is proud to supply this essential component backed by expert support and extensive product knowledge, ensuring a seamless experience for your mobile computing requirements.