Gas & 
			timed shut off  Timer 
			trips at the gassing threshold. Batteries are allowed to gas for 
			three hours before shut off. Best for deep cycle batteries.
			Gas & 
			float  Timer 
			trips at the gassing threshold. Batteries are allowed to gas for 
			three hours before dropping into indefinite float/maintenance mode. 
			Best for deep cycle batteries that may see long periods of 
			inactivity.
			AGM Timer 
			trips at the absorption threshold. Batteries stay in absorption mode 
			for three hours before dropping into indefinite float/maintenance 
			mode.