Verify that your new battery is a Lithium 3-volt CR2 battery.
Open your door and move the deadbolt to the locked position (bolt extended).
Unscrew the cap at the end of the bolt.
Remove the old battery.
Insert the new battery with the positive end in and the negative (flat) end out.
Replace the cap. You’ll hear a success chime.
Note: Do not use a rechargeable CR2 battery with Level locks, rechargeable CR2 batteries aren’t compatible.
