0C52863, 0C52864, 45N1144, 45N1145, 45N1145, 45N1146, 45N1147, 45N1148, 45N1149, 45N1150, 45N1151, 45N1152, 45N1153, 45N1158, 45N1159, 45N1160, 45N1161, ASM P/N 45N1144, ASM P/N 45N1148, ASM P/N 45N1150, FRU P/N 45N1145, FRU P/N 45N1149, FRU P/N 45N1151, LT440BAT, LT440PBAT, 3INR19/65-2, LE T440P-QJ-3S2P Compatible Models :Lenovo ThinkpadT540, W540, T440p, T540p, T440, L440, L540, W541 What's in the box 1 X Battery