Lenovo 40y6797 9cell 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 non-wide Screen and 15.4 Inch Wide Screen/t500/w500/z60m/z61e/z61m. Does not work on T61 14.1 inch widescreen laptop/does not work on all Z60 or Z61 models**
Lenovo Lithium Ion Notebook Battery 40Y6797 Laptop/Notebook Batteries