On March 27, 2014, Lenovo voluntarily recalled certain lithium-ion batteries. These batteries were manufactured for use with ThinkPad notebook computers that shipped worldwide between October 2010 and April 2011. Lenovo is offering replacement batteries free of charge regardless of warranty status.
View March 27, 2014 battery recall FAQs.
Lenovo sold the batteries with new notebook computers or as optional or replacement batteries on the models listed below.
These models may have shipped with 3-cell, 4-cell, 6-cell or 9-cell batteries.
Until a replacement battery arrives, you should turn off the system, remove the battery, and only power your ThinkPad by plugging in the AC adapter and power cord.
Lenovo apologizes for the inconvenience caused by this issue. Shipment of quality products always has been and continues to be the foremost concern.
Goto: http://support.lenovo.com/en_US/detail.page?DocID=HF004122 for more information