AGPtek 11.1V 9 Cell 6600mAh Laptop Battery Replacement For Dell Latitude E6420 E5420 E5520 E5530 E6430 E6520 E6530 N4720 N5420 N7420 N7520 N7720 series, Compatible with the Part Number P8TC7, P9TJ0, R48V3, PRRRF, RU485, T54F3, T54FJ, UJ499, YKF0M, X57F1 P/N: DL6420LP Cells QTY: 9. Voltage(V):11.1V Capacity: 6600mAh/73Wh Dimension: 213.58*74.4*21.5mm N.W.:460g. Type:Li-ion