Original Model Numbers: 04NW9, 05G67C, 08858X, 08P3YX, 0R48V3, 312-1163, 312-1242, 312-1310, 312-1311, 451-11694, 451-11725, 8858X, 8P3YX, 8P3YX, 911MD, 91MD, E6420BAT, HCJWT, KJ321, M5Y0X, NHXVW, P8TC7, P9TJ0, PRRRF, PRV1Y, R48V3, T54F3, T54FJ, UJ499, X57F1, YKF0M, 312-1324, LE E430-QJ-3S2P, N3X1D, 2P2MJ, 312-1164, 312-1165, 312-1325, 451-11695, 451-11696, M1Y7N. Compatible Models: Dell INSPIRON 14R, 14R(5420), 14R(7420), 15R, 15R(5520), 15R(7520), 17R, 17R(5720), 17R(7720) Dell LATITUDE E5420, E5420M, E5430, E5520, E5520M, E5530, E6420, E6430, E6440, E6520, E6530, E6440, E6540, E5420 ATG Dell VOSTRO 3460, 3560 What's in the box 1 X Battery