This remote uses cr2032 battery.
Change garage door opener battery.
Other types of remote controls have screwed in locks at the back so you may need to use a screwdriver to get the batteries out.
How to change the battery on a liftmaster door opener remote.
Repeat the same process for the remote taking out the old batteries and replacing them with new ones.
Insert a screw driver tip in it and slightly twist it it will remove the top of the case.
If your garage door opener operates via remote control you can remove the old batteries by simply sliding the door located at the back of the remote control.
Like most electronic gadgets these days your garage door opener remote is operated by a battery.
Step 2 replace the batteries.
If you use a garage door remote and the door still isn t opening then it may be the batteries in the remote that are dead.
Remove the old battery and replace it with a new one placing it positive side up.
If the door works then you re good to go.
The battery in your remote usually lasts between 2 and 5 years depending on the battery and how often you use your remote.
There is a slide on the side of the remote.