Laptop Battery 8858X (11.1V 48WH) For Dell Inspiron E6420 E6520 E5420 6430 8858X 7420 Laptop Replacement Battery 8858X Li-ion Battery for Dell laptop Voltage : 11.1 V Capacity : 48 Wh Fits for: E6420 E6520 E5420 6430 8858X 7420