I run dual batteries, one starting and one deep cycle, plus if I am going far, a booster pack. I also have Sea Tow. I ain't getting stuck!!! 
Best scenario is two batteries as stated by many, or one battery with a tow service.
		 
		
		
		
		
		
		
			
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				1987 V20 
1996 Jonhson 150 OceanRunner
			 
		
		
		
		
		
	
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