Lenovo B5400 Notebook - Manual (Page 36)

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Appendix A. CRU instructions
Replacing the backup battery - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
To replace the backup battery, do the following:
1 Turn off the computer. Disconnect the AC power adapter and all cables
from the computer. Wait three to five minutes to let the computer cool.
2 Close the computer display, and turn the computer over.
3 Remove the battery. For details, see “Replacing the battery pack” on page 28.
4 Remove the screws , and then remove the cover . a b
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