Laptop Battery PATONA for Dell Latitude E6420/E6430, 6600mAh, Li-Ion, 11.1V:Have you been experiencing battery capacity loss? The battery PATONA for Dell Latitude E6420/E6430, 6600mAh, Li-Ion, 11.1V is a source of energy for selected models of Dell laptops. A flat laptop battery or a blackout wont catch you off guard. A spare laptop battery is useful as a second battery when you are on holiday and you cant connect your device to an electrical outlet, but still want your laptop to be running. PATONA for Dell Latitude E6420/E6430, 6600mAh, Li-Ion, 11.1V Battery Key Features Alternative Lithium-ion (Li-ion) battery Safe substitute for the original battery Capacity: 6600mAh, voltage: 11,1V Supplies your laptop with extra power if you happen to run out Keeps your laptop running and increases your productivity Tip: Frequent use affects battery life . Please adhere to the instructions on correct charging and discharging that you can find in the manual to slow down capacity loss.