Power Acoustik PTID-8940NRT Operating Manual page 22

REPLACING THE BATTERIES
If the remote control has no function or if the operating range reduced, replace the old
battery with new one.
1. Pull out the battery holder. Follow the
arrow 1 slide it to the right toward the
battery while at the same time pull the
battery holder away from the remote
control.
2. Place the new battery. Place the new
lithium battery with the (+) side up.
3. Push the holder back. Using the finger
to push in the holder back until the
locking sound is heard.
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