The Dell Latitude E7250 laptop is equipped with a 4-cell, 52 Wh Li-ion battery that provides up to 8 hours of battery life on a single charge. The actual battery life can vary depending on usage, configuration, and age of the battery. Additionally, the laptop supports Dell ExpressCharge technology, which allows the battery to charge up to 80% in just one hour when the laptop is turned off or in sleep mode. If needed, there are also compatible extended battery options available for purchase. Overall, the Dell Latitude E7250 offers decent battery life and quick charging options, making it a reliable choice for professionals on-the-go.