Honeywell Dolphin CT40HC User Manual page 16

4. Disconnect one end of the hand strap from the computer.
5. Unlock the battery
6
a. Press and hold down the small button on the battery latch, and then slide
the latch toward the right side of the computer to unlock the battery for
model CT40-xxx-xxxxx0x.
b. Press the button on the battery latch and then slide the latch toward the
right side of the computer and battery will pop up for the models
CT40-LON-xxxxxAx, CT40-xxx-xxxxxBx, CT40-xxx-xxxxxHx.
Dolphin CT40 Mobile Computer