The WJ5R2 Battery for Dell Precision 3510 M3510 Latitude E5570 is a high-quality AC & DC battery designed specifically for Dell laptops. With a capacity of 84Wh and a voltage of 11.4V, this black LiPo battery is compatible with the WJ5R2 4F5YV model and various other Dell Precision and Latitude laptops. Dell great name ensuring reliability and long-lasting performance for your device. Perfect for those in need of a reliable replacement battery for their Dell laptop.