Lenovo B450 Notebook - Manual (Page 56)

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Chapter 6. Upgrading and replacing devices
Replacing the battery
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„
To replace the battery
1
Turn off the computer. Disconnect the AC adapter and all cables from
the computer.
2
Close the computer display, and turn the computer over.
Note: Use only the battery provided by Lenovo. Any other battery could ignite or
explode.