Laptop Battery PATONA for Dell E6420, 5200mAh, Li-Ion, 11.1V, PREMIUM:Does the battery in your notebook not have a large enough capacity, or is it almost impossible to work without a connection to a power outlet? Do you wish you could buy a new one but the original replacement is just too expensive for you? Then we have the solution for you. Replace the orginal with a high-quality, Patona battery. You won't need to worry because these products are fantastic quality and come with integrated overload and overcharge protection.Key Features of the PATONA Replacement bBatteryDesigned for select Dell laptop modelsHigh quality cellsProtection against overload and overchargingWill replace the originalCompatible laptops:Dell Audi A4, A5, S5, Dell Inspiron 4420, 4520, 4720, 5420, 5425, 5520, 5525, 5720, 7420, 7520, 7720, 14R Series, 15R Series, 17R Series, M421R, M521R, N4420, N4520, N4720, N5420, N5520, N5720, N7420, N7520, Dell Latitude E5420 Series, E5430, E5520 Series, E5530, E6420 Series, E6420 N-Series, E6420 XFR, E6430 Series, E6440, E6520, E6530, Dell Vostro 3460, 3560