To locate for the model number of your garage door opener it's usually located on the left side of the operator and some label may be located under the left side of the opener or could be in the front of the opener from where the lens cover is located, and the model of the Battery Backup Replacement is a G4228 12v Chamberlian battery.
@semylotutala2393 Check the battery connector if they are plugged in to the right wiring terminal With the positive to positive to negative to negative with the color wires that are wired coated learngaragedoors.com/wp-content/uploads/2021/12/chamberlain-battery-backup-garage-door-opener.jpg and the battery itself that has the positive and negative reading on it that tells to which wire that connects to the opener wiring with the battery backup to powering a garage door opener.
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What model is the battery?
To locate for the model number of your garage door opener it's usually located on the left side of the operator and some label may be located under the left side of the opener or could be in the front of the opener from where the lens cover is located, and the model of the Battery Backup Replacement is a G4228 12v Chamberlian battery.
Recently replaced a new battery which is not working when power is off... don’t know what could be the issue
@semylotutala2393 Check the battery connector if they are plugged in to the right wiring terminal
With the positive to positive to negative to negative with the color wires that are wired coated
learngaragedoors.com/wp-content/uploads/2021/12/chamberlain-battery-backup-garage-door-opener.jpg
and the battery itself that has the positive and negative reading on it that tells to which wire that connects to the opener wiring with the battery backup to powering a garage door opener.