The Dell GRT01 Genuine Battery is designed specifically for Dell Latitude laptops, including models such as 5421, 5431, 5521, and 5531. With a high battery capacity of 4000 mAh and a voltage of 15.2V, this Li-Ion battery provides long-lasting power for your device. Manufactured by Dell, this black battery comes with a manufacturer warranty of 1 year and is compatible with various Dell Latitude and Precision models. Perfect for those in need of a reliable and high-quality replacement battery for their Dell laptop.