Brand New BattPit 10.8 Volt 4400mAh 48Wh Li-ion Battery. 1 Year Replacement Warranty on all BattPit Products. 30 Day Money Back Guarantee. Orders ship out in 1-2 business days.Compatible with the following Lenovo/IBM models: ThinkPad T540p 20BF005TUS, ThinkPad T540p 20BF005U, ThinkPad T540p 20BF005X, ThinkPad L440, ThinkPad L440 20A, ThinkPad L440 20AS, ThinkPad L440 20AS000, ThinkPad L440 20AS001, ThinkPad L440 20AS002, ThinkPad L440 20AS003, ThinkPad L440 20AS006, ThinkPad L440 20AT, ThinkPad L440 20AT000, ThinkPad L440 20AT002, ThinkPad L440 20AT003, ThinkPad L440 20AT004, ThinkPad L440 20AT005, ThinkPad L540, ThinkPad L540 20A, ThinkPad L540 20AU000, ThinkPad L540 20AU002, ThinkPad L540 20AU003, ThinkPad L540 20AU006, ThinkPad L540 20AV000, ThinkPad L540 20AV002, ThinkPad L540 20AV003, ThinkPad L540 20AV005, ThinkPad L540 20AV006, ThinkPad L540 20AV0070, ThinkPad L540 20AV0080, ThinkPad T440p, ThinkPad T440p 20AN, ThinkPad T440p 20AN000, ThinkPad T440p 20AN006, ThinkPad T440p 20AN007, ThinkPad T440p 20AN009, ThinkPad T440p 20AN00A, ThinkPad T440p 20AN00C, ThinkPad T440p 20AN00D, ThinkPad T440p 20AN00E, ThinkPad T440p 20AW, ThinkPad T440p 20AW000, ThinkPad T440p 20AW004, ThinkPad T440p 20AW005, ThinkPad T440p 20AW009, ThinkPad T440p 20AW00B1, ThinkPad T540p, ThinkPad T540p 20BE, ThinkPad T540p 20BE003, ThinkPad T540p 20BE004, ThinkPad T540p 20BE008, ThinkPad T540p 20BE00B, ThinkPad T540p 20BE00C, ThinkPad T540p 20BF, ThinkPad T540p 20BF001, ThinkPad T540p 20BF002, ThinkPad T540p 20BF003, ThinkPad T540p 20BF005, ThinkPad W540, ThinkPad W540 20BG001, ThinkPad W540 20BH001, ThinkPad W541 20EF000, ThinkPad W541 20EF001, ThinkPad W541 20EF002, ThinkPad W541 20EG000.Compatible with the following Lenovo/IBM part numbers: 0C52863, 0C52864, 45N1145, 45N1147, 45N1148, 45N1149, 45N1151, 45N1153, 45N1158, 45N1159
