Best Buy: AGPtek IBM Lenovo ThinkPad R60 R61 T61 R500 T500 W500 SL400 SL500 41N5666 Battery Thinkpad-41N5666
9 Cell Battery for IBM Lenovo Thinkpad T60 R500 T500 W500 SL300 SL400 40Y6797 732330325002 | eBay
40y6797 Lenovo Hi Capacity 9 Cell Replacement Battery 41++ for R60/r60e/r61 15.4 Inch Wide Screen/15.4 Inch Standard Screen/r61i 15.4 Wide Screeen/15.4 Inch Standard Screen/r500/sl300/sl400/sl500/t60/t60p/t61 14.1 Inch Standard Screen/15.4 Inch Wide ...