It would be 'best' to use flat top in all power devices except the very few that require button top.
The owners manual or manufacturers description will say ' requires button top battery '.
If it doesn't state 'requires button top', use flattop.
	
		
			
		
		
	
			
			The owners manual or manufacturers description will say ' requires button top battery '.
If it doesn't state 'requires button top', use flattop.
 
				
		 
 
		 
 
		 
 
		 
 
		 
	 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		