Amazon.com: LQM® 10.8V 7800mAh New 40Y6797 Laptop Battery for Lenovo IBM ThinkPad T60 R60 R500 W500 T500 SL300 SL400 SL500 40Y6795 42T4619 42T4620 92P1133 : Electronics
Amazon.com: Original Lenovo ThinkPad X60, X61, X60S, X61S Series Laptop battery 22++ (8 Cell, High Capacity 5200mAh/75W, 14.4V) 40Y7003 w/ one replacement Spacer & screws[NOT compatible with the X60 X61 Tablet PC
Amazon.com: Cameron Sino 3500mAh / 51.80Wh Li-Polymer High-Capacity Replacement Batteries for HP BT04XL , fits HP 687517-171, 687517-1C1 : Electronics
Amazon.com: Original Lenovo ThinkPad X60, X61, X60S, X61S Series Laptop battery 22++ (8 Cell, High Capacity 5200mAh/75W, 14.4V) 40Y7003 w/ one replacement Spacer & screws[NOT compatible with the X60 X61 Tablet PC