Lenovo ThinkPad T430 User Manual page 90

4. Slide the battery latch to the locked position.
5. Turn the computer over again. Reconnect the ac power adapter and all cables.
To remove the extended life battery, do the following:
1. Turn off the computer, or enter hibernation mode. Then disconnect the ac power adapter and all cables
from the computer.
2. Close the computer display, and turn the computer over.
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