Cisco IP DECT 6800 Series Hardware Installation page 15

Hardware Installation
Step 4 Place the battery under the clip and drop it into the compartment.
The battery contacts are on the top left edge of the battery and the top left edge of the battery compartment.
Ensure that the contacts meet and that the battery is seated in the compartment.
Step 5
Replace the battery cover, make sure that the cover is closed, and turn the latch clockwise to the locked
position.
Don't force the cover closed. If it doesn't close easily, take it off and check that the battery is completely seated
in the battery compartment.
Install the Battery in the Handset
Hardware Installation
15