Green Cell 4400mAh battery compatible with Lenovo IBM ThinkPad R61 ...
Lenovo IBM ThinkPad T61 7663 Replacement Battery
Amazon.com: Laptop Battery for IBM/Lenovo ThinkPad R61 R61i T61 T61p T61u T400 R400 Series (ONLY for 14.1-inch Widescreen), fits 42T4644 42T4645 42T4677 42T4678 42T4743 42T4745 42T4771 42T5262 42T5264 : Electronics
Premium Power Products Compatible 9 cell 7800 mAh battery for Lenovo Thinkpad R61 T61 For Notebook Battery Rechargeable 7800 mAh 10.8 V DC 1 - Office Depot
92P1140 - 6-Cell 41+ Replacement Battery Compatible with IBM ThinkPad T60 T61 R60 R61 Z61 T61p T60p T500 W500 SL500 - CPU Medics
GCP Products GCP-68262 Battery For Ibm Lenovo Thinkpad R61 T61 T400 R400 Series 14.1" Widescreen Us
IBM Thinkpad T61 Battery Replacement - iFixit Repair Guide
T500 W500 R500 6 Cell Battery for IBM Lenovo ThinkPad T61 T61p T60 R61 R61i R60 | eBay
Amazon.com: Laptop Battery for IBM/Lenovo ThinkPad R61 R61i T61 T61p T61u T400 R400 Series (ONLY for 14.1-inch Widescreen), fits 42T4644 42T4645 42T4677 42T4678 42T4743 42T4745 42T4771 42T5262 42T5264 : Electronics
High Performance Battery fit IBM ThinkPad Widescreen R61 R61i T61 T61p T400 R400 Series Laptop 14.1 Inch -Futurebatt : Electronics - Amazon.com