CHAMBERLAIN 4228 Replacement Battery for Garage Access Systems consumer electronics Electronics

some garage door openers come with a battery backup system the battery will typically need to be replaced every one to two years the garage door opener will beep and the battery status LED will turn red to indicate the battery needs to be replaced always wear gloves and eye protection when working around the battery compartment first unplug the garage door opener open the light lens on the garage door opener to access the battery compartment remove the battery compartment cover pull the battery out and disconnect the red and black wires from the battery terminals connect the red and black wires to the new battery making sure the red wire is connected to the red terminal and the black wire is connected to the black terminal insert the battery into the compartment and secure the battery compartment cover make sure the battery wires are not pinched plug in the garage door opener the batter