I tried searching, I noticed plenty of people saying it is ok to run their converter off a small battery. Does anyone run their converter to their big motors starting battery? Any reason not to do this? Thanks in advance!
Converter/Battery question
jimbo_slice47
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I tried searching, I noticed plenty of people saying it is ok to run their converter off a small battery. Does anyone run their converter to their big motors starting battery? Any reason not to do this? Thanks in advance!
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1,254 Posts
Are you talking just to charge the starter battery? There really isn't a need to run a converter to a starting battery. You could hook it up for a few minutes if it needs to be charged but otherwise there isn't a need to do that.
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No, to power my lights and troller.
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Ahhh, so you mean run it all off 1 battery?
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Yessir, just curious if anyone had any experience doing this or insight as to why one shouldn't.
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I don't know about you but there's no way I can start my 115 without a battery and I don't intend on jeopardizing that battery in any way, an extra battery for troller and lights isn't that expensive and can save a lot of headaches of being stuck on the water
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X2 that battery and motor is way back home, the big motor charging system keeps that up and wouldn't run lights or troller off that one
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Yeah, I wouldn't run it off my starting battery, that's the little bit that can save your a$$ if you get stuck out somewhere. I like my big motor and wouldn't jeopardize its functionality by trying to run my troller and lights off the same battery... If you're going to run a converter you can always use a small 12v battery if weight is an issue. Like a vexilar battery. It's cheaper and smaller but I still wouldn't recommend doing that either because IF something should happen to your converter or generator you're left with a dead little battery rather quickly and no lights. So I'd say just buy another battery.
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Does that play a role on the actual trolling motor? What i'm trying to ask is if a starting battery was charged all night powering your troller vs. a deep cycle would the difference in batteries have an affect on the trolling motor?
I have always thought that the reason you used a deep cycle was simply for the longevity factor of what the battery was meant to do vs. the high output for short periods of time. But if the starting battery was always fully charged would it matter?
Reason i ask is because im currently pushing my troller with lawn mower batteries which are obviously starting batteries.
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Per Golbom's help, I paralleled my starter and light battery. My issue was my two gps, running nav lights and floor LEDs are powered from starting battery from the factory and 6-8 hours into night, motor would not start and I had to use jumper cables.
One PM3 - 55- 12v powering both.
One PM3 - 55- 12v powering both.
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599 Posts
whats the point of having two batteries then? if they are paralleled and running off the same converter? May as well just use one battery.
The only reason you typically parallel a battery is for longer battery life. Your battery is going to last forever with the converter on it. I'd push everything off 1 battery and keep the second as a spare in the back of the boat. That way if your converter quit you would have 1 charged battery instead of two dead ones.
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Starting batteries are prone to failure if they are deeply discharged - if your converter does not keep up or it quits one night you have a good chance of ruining your battery by using it to troll. Being stuck on the water is not fun and putting all your eggs in one basket is a good way to end up calling people at 2AM looking for a tow. They do make dual purpose batteries that are a compromise between the two, but IMO it's well worth buying a second battery.
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