The GJKNX Laptop Battery Replacement is a high-performance power solution designed for Dell Latitude and Precision series laptops, including Latitude 5480, 5490, 5580, 5590, and Precision 3520. Featuring a robust 4-cell Lithium-Ion design, it offers a capacity of 68Wh and 7.6V, delivering extended runtime of up to 6-9 hours, depending on usage. Built with advanced safety features, including overcharge, over-discharge, short circuit, and overheating protection, this CE, FCC, and RoHS-certified battery ensures reliable and secure performance. Lightweight and easy to install, the GJKNX battery is the ideal replacement to restore your laptop’s productivity and portability.