The Lenovo ThinkPad X60 is a great tablet that deserves an equally great replacement battery. Fortunately, you can find these great batteries at USB Phone World. Our inventory of eight-cell lithium ion replacement batteries has been manufactured using high technology skills to produce products that meet or exceed OEM specifications. These batteries are compatible with IBM Lenovo ThinkPad X60 and X61 tablets with product numbers including: 42T5204, 42T5205, 40Y8318 and 42T5251. The best way to find the appropriate replacement battery for your system is by entering your laptop’s product number into the search bar at USB Phone World. After doing this, you will see all of the batteries that will work on your device. These eight-cell batteries are 14.4V and guaranteed to work on your laptop. If you are not satisfied with your purchase, you can return the battery to us within 30 days for a full refund. We are confident, however, that you will love our products, fast shipping and outstanding customer service.