Go to Amazon Sites : http://www.amazon.com/gp/product/B005DWHR60?tag=shitmycatsrea-20

Anker? New Laptop Battery for Lenovo ThinkPad T60 T60P T61 T61P T500(ONLY for Laptops of 14.1

Battery type Li-ion Capacity 5200mAh56Wh Cells 6-cell Voltage 108V
Operation time for standard batterieseg 4400mah Around 2 hours the actual operation time will depend on how much electricity is required by the device and how you use it