IBM ThinkPad T61 battery Description:
Type: Li-ion
Capacity: 4400 mAh
Volt: 10.8 V 
Size: 209.55 x 59.95 x 23.59 mm
Color: Black 
IBM ThinkPad T61 battery Compatible original Battery Code:
  • 40Y7001
  • ASM 92P1170
  • FRU 42T4511
  • FRU 92P1169
  • FRU 92P1227



IBM T61 battery Fit with below:
  • ThinkPad R61
  • ThinkPad R61e
  • ThinkPad R61i
  • ThinkPad T61
  • ThinkPad T61p
  • ThinkPad X61
  • ThinkPad X61s