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					Originally Posted by  OLDFLM
					 
				 
				Don't the bass boat guys do this for their fish finders & trolling motors? 
 
You'd think Bass Pro Shops would have something for a dual battery set-up like you're wanting... 
			
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 A lot of racers use this as well.  You can get dual battery switches but they only let an AGM battery charge to about 80%.   The DC-DC Isolators let both batteries charge to 100% but don't seem all that adept at switching big current in the event a jump was needed ot the primary.  At least not the ones I have run across but I'm just learning about them.