The Genuine Acer Laptop Battery, model # AP16M5J is specifically designed for Acer Aspire 3 laptops, including models such as A314-31, A315-21, A315-51, and ES1-523. Made by Acer, this black Li-ion battery has a capacity of 4660 mAh and operates at a voltage of 7.7V. It is compatible with the Acer Aspire product line and is manufactured in China. This battery is sold as is and does not come with a manufacturer warranty, but it is a reliable and high-quality replacement option for your laptop.