The Dell XX327 4400mAh Laptop Battery is a dependable replacement designed to power specific Dell Inspiron and Vostro laptop models. Featuring a 6-cell Lithium-Ion configuration with a capacity of 4400mAh and 11.1V, it provides up to 4-6 hours of runtime, depending on usage. Engineered for durability, the battery supports over 500 charging cycles and incorporates advanced safety features, including protection against overcharge, over-discharge, short circuits, and overheating. Lightweight and easy to install, this CE, FCC, and RoHS-certified battery ensures reliable performance and restored portability for your laptop.