Panasonic Toughbook CF-U1GQG6L2M Reference Manual page 39

Battery Power
1
Place the computer with the panel side down.
Place it on a soft cloth, etc.
2
Remove right and left hand strap clips from the computer.
The illustration shows the clip on the left side as an example.
Remove the edge of hand strap passing through the clip.
A
Tip the top of clip front.
B
Pull out the clip from the computer.
C
Do the same for the right clip.
3
Open up the whole hand strap.
4
Press and hold (A) and slide the latch to unlock the battery
cover.
The following illustration shows how to attach/remove Battery 1 as an
example.
Do the same for Battery 2.
39
A A