Cisco 6800 Series Hardware Installation page 18

Install the Battery in the Handset
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.
Note
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.
What to do next
Before you use the handset, you need to charge it. See
Hardware Installation
18
The battery fits only one way in the compartment. Don't force the battery in the wrong way in the
battery compartment.
Charge the Handset Battery, on page
Hardware Installation
19.