Part number 08K8045. Li Ion battery IBM Thinkpad X30 (Not for the X20) 10.8V 4400 mAh.

Use the 08K8036 battery for those long trips on the road or in the sky. The 08K8036 battery provides hours of mobile computing productivity.

Don't be fooled by cheap, refurbished IBM laptop batteries. These batteries are usually pulled from used IBM laptops and do not have the full number of charge-discharge cycles.

Purchase this high quality 08K8036 IBM laptop battery and receive a full 1 year warranty and 30 days money back if you are not satisfied with your purchase.