The product is a set of 5 genuine Lenovo ThinkPad laptop batteries compatible with models E480, E485, E495, E580, and E595. These black Li-Ion batteries have a capacity of 45WH and a voltage of 11.1V. They are designed specifically for Lenovo ThinkPad laptops and come with multiple MPN numbers. Each battery contains 3 cells and is ideal for replacing worn-out or damaged batteries in Lenovo laptops. Perfect for users looking for reliable and high-quality replacement batteries for their Lenovo devices.