Top Morewer External Laptop Battery Charger for IBM ThinkPad X40 Series (machine type 2371 2372 2382/2386)ThinkPad X41 X41 1864 X41 1865 X41 2525 X41 2526 X41 2527 X41 2528 Series Battery Charger [Compatible 14.8V and 14.4V 5 Pin IBM ThinkPad Battery]