Apple Macintosh PowerBook 1400 - Manual (Page 11)

Removing the battery label (if necessary)
Most new PowerBooks are shipped with a label covering the battery to
protect it from losing its charge completely. If there is a label, you need to
remove it before the battery will provide power for the computer.
1 With the display open, peel off the part of the label on the computer’s case, taking care
not to tear the label.
2 Close the display.
3 Move the latch under the battery to the right and hold it in that position.
4 Slide the battery out of its compartment.
5 Carefully remove the label from the battery.
Avoid touching the battery’s metal contacts as you peel off the label.
6 Replace the battery and open the display.
2 Slide the battery out.
1 Slide and hold the latch to the right.
11 Getting Started