Trolling motor and lead acid batteries for dingy.. - SailNet Community

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  #1  
Old 06-21-2013
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Trolling motor and lead acid batteries for dingy..

Hi,
I have been experimenting with using a standard electric trolling motor with a deep cycle battery to run my dingy.

I additionally put on a 35W solar panel and controller.

This worked ok... until I got down to georgia, where the tidal currents increased as I traveled south.

Here they are sometimes 3-3.5 knots, and there is just not enough power available.

Should I continue to purchase bigger trolling motors and more and more batteries for my dingy? lol.

-or-

Has this been tried before and someone can let me know where this ends?

(I know of propane motors and lithium ion electric motors.)
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Old 06-21-2013
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Re: Trolling motor and lead acid batteries for dingy..

With all their shortcomings, it's still tough to beat a gasoline outboard. I've considered lead acid, Torqueedo, and propane, but each has its issues. A properly maintained gasoline with fresh fuel is my weapon of choice.
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Old 06-21-2013
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Re: Trolling motor and lead acid batteries for dingy..

How big a TM do you have? I have a 40# thrust TM on a 9' dink w/ a 65AH batt. ( no SP ) I can do 5kts on flat water and about 3.5 on crap water for about 90mins

I know Minn-Kotta has a 75# TM that would be killer
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Old 06-21-2013
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Re: Trolling motor and lead acid batteries for dingy..

Its just a basic 30 lb thrust.

So Pappy, sounds like I can do this. Do you have only one lead acid battery?

I was thinking of building a box that would be under a seat that would hold the stuff. The solar panel is a ruggedized type that you can sit on.
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Old 06-21-2013
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Re: Trolling motor and lead acid batteries for dingy..

I have two 65AH batts but only use one at a time unless we go sightseeing, If I take both it's a 3 hour tour. when I get around to it, I'll put them in a batt box and string them together so I'll have 210AH

I cut the connectors that came with the motor off and replace them with clamps like you'd get with jumper cables only smaller, takes <5 sec to switch batts




Also, each batt (group 24 ) fits neatly inside a Husky ( home depot ) tool bag so they're easy to move around
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Last edited by poopdeckpappy; 06-21-2013 at 07:48 PM.
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