Lenovo ThinkPad R400 Hardware Maintenance Manual - Page 92

1010 Battery pack Important notice for replacing a battery pack: ThinkVantage Toolbox (in Windows 7) and Lenovo System Toolbox (in Windows Vista and Windows XP) have an automatic battery diagnostic that determines if the battery pack is defective. A battery pack FRU should not be replaced unless this diagnostic shows that the battery is defective. The only exception to this is if the battery pack is physically damaged or a customer is reporting a possible safety issue. If ThinkVantage Toolbox or Lenovo System Toolbox is not installed in the computer, the customer should download this program before a non-physically damaged battery pack is replaced. Note that a physically damaged battery pack is non-warranty replacement. DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. Table 9. Removal steps of battery pack Unlock the battery release lever 1 . Holding the battery release lever in the unlocked position 2 , remove the battery pack in the direction shown by arrow 3. 1 2 3 When installing: Install the battery pack along the slide rails of the slot. Then make sure that the battery release lever is in the locked position. 84 ThinkPad T400 and R400 Hardware Maintenance Manual