For many years most remote control transmitters for garage door openers had standard 9 volt batteries.
													
																	How to change garage door opener battery chamberlain. 
									
	
		
	
																	All garage door opener remote transmitters do have a battery of some type underneath the cover but the type size and voltage varies between the different models. 
																	The unit shown is a chamberlain but o. 
																	How to change the battery on a liftmaster door opener remote. 
																	This remote uses cr2032 battery. 
															
													
									
	
		
	
																	Chamberlain recommends only using oem batteries provided by chamberlain. 
																	Will a generic 12 volt battery work in my chamberlain battery backup opener. 
																	This is a step by step instructional video on how to change out the cr 2032 battery on your garage door opener remote.