Sony PCG-TR2MP Hardware Manual page 19

Using your VAIO computer
Removing the battery pack
To remove the battery pack, proceed as follows:
1 Turn off the computer and close the cover.
2 Slide the lock lever (1) to the Unlock position.
3 Slide and hold the release lever (2) as indicated and slide the battery away from the computer.
PCG-Z1, PCG-V505 series:
PCG-TR series:
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