IBM ThinkPad R61 T61 Series Battery are made from a grade cells and highest quality parts by IBM laptop battery manufacturer in China. IBM laptop battery are tailored made according to the original size, whether the battery appearance, size and quality are the same as with the original. Every IBM ThinkPad R61 T61 Series laptop battery should be under strict quality control including filtration and safety testing of voltage,capacity and battery core before leaving battery pack factory.

IBM ThinkPad R61 T61 Series batteries features:
Uses the highest quality cells.
100% Q.C. of EVERY product. Extended run time.
1 Year Extended Warranty.
Excellent Service.
100% compatible with original battery.

Battery replacement Compatible Part Number:
42T5225, 42T5227, 42T5262, 42T5264, 42T5229

Battery relacement Fit Models: 

ThinkPad R61 Series(14-inch wide)
ThinkPad T61 Series(14-inch wide)
ThinkPad R61i Series(14-inch wide)
ThinkPad R61e ThinkPad T400 (14-inch wide)
ThinkPad R400 (14-inch wide)

Specificate:
Battery Type: Li-ion  Voltage: 10.8V  Capacity: 4400mAh