product code: IBM X40H
Voltage: 14.4V
Capacity: 4400mAh
Dimension: 266.75 x 72.50 x 20.60 mm
Colour:  Black
Weight:  445g
Battery Type:  Li-ion

Replace P/N: 92P0999, 92P1000, 92P1001, 92P1003, 
92P1005, 92P1009, 92P1080, 92P1119, 
92P1146, 92P1148, FRU 92P0998, 
FRU 92P1002, FRU 92P1078, FRU 92P1143,
FRU 92P1145, FRU 92P1147, FRU 92P1149

Fit model:  IBM ThinkPad X40 Series(machine Battery Type:2371/2372/2382/2386)      ThinkPad X41      ThinkPad X41 1864  
ThinkPad X41 1865      ThinkPad X41 2525      ThinkPad X41 2526  
ThinkPad X41 2527      ThinkPad X41 2528      ThinkPad X41 Series  
Series Laptop Battery