Laptop Battery PATONA for DELL LATITUDE E5440, 5200mAh, Li-Ion, 11.1V PREMIUM:Do you need to improve the battery life of your laptop? This laptop battery PATONA for DELL LATITUDE E5440, 5200mAh, Li-Ion, 11.1V PREMIUM is a power supply replacement for selected models of Dell laptops. A flat laptop battery or a power cut will not disconcern you anymore. A spare laptop battery is suitable as a second battery when you are on holiday and you dont have access to an electrical outlet, but still want your laptop to be running. PATONA for DELL LATITUDE E5440, 5200mAh, Li-Ion, 11.1V PREMIUM Battery Key Features Alternative Lithium-ion (Li-ion) battery Safe alternative to the original battery Capacity: 5200mAh, voltage: 11,1V Compatible with Dell laptops, specifically the Latitude series Provides your laptop with power when you are on the go Keeps your laptop running and increases your productivity Tip: Frequent use affects the performance of the battery. Please adhere to the instructions on correct charging and discharging that you can find in the manual to slow down capacity loss.