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Posts: 512
| Hey guys, just had a question about tapping into my 24 volt supply for my trolling motor. Could i hook up a 12 volt line for my bow mount fish finder on this system? Just run it off one battery? Just wondered if this would cause problems..
thanks,
Dave |
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Posts: 5874
| You are likely to experience interference on your sonar when you use the trolling motor. I'd use the big motor starting battery for any sonars. Perhaps there is already some wiring located up front? |
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Posts: 3518
Location: north central wisconsin | I have mine hooked up that way, as I tried running both Lowrance units(actually a Lowrance lcx 25 in back and eagle fishmark up front) to my starting battery and ran into interference issues. I now run my main unit in back(the lcx 25) off my trolling motor battery and have no issues, and have my unit for up front(switched back to my vexilar due to intrerference with the lcx 25) hooked to the starting. I also only have a 2 bank charger and don't feel like hooking another chargfer to the starting battery all the time, so having the power craving lcx 25 hooked to one of the batteries in my 24 volt system has eluded that potential issue(it was draining the starting battery when I had it hooked to it, and I would have need to get another bank charger or a 3 bank). Good luck! |
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Posts: 2687
Location: Hayward, WI | A lot of people would probably advise against doing what I do, but I have been running my system all year with no problems. I have a 24 volt trolling motor, and only run two batteries hooked up to make 24 volts. I don't have a seperate starting battery. So, I hook my outboard and all accessories besides the rear mounted depth finder to one battery. Then I hook up the terminals for the trolling motor and the bow mounted depth finder to the other battery.
I must be lucky, because I have no interference. Maybe because I run a Fl-8 up front, don't know. When charging my batteries, they are usually pretty close to the same charge.
curleytail |
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| Curly tail. My 24 volt trolling motor requires me to hook the pos to one batt, and neg to the other with a jumper. You sure that is a 24 volt motor? I was always thinking about hooking my boat motor to one of my trolling batteries, and just might, good point. Get rid of some weight in my rig. Not sure why advised against. |
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| what about this?
i have a 36v trolling motor (3 batteries in series).
could i connect a 12v stern trolling motor to just one of those batteries?
if so, would it matter which battery in the series?
or would the 36v running through the batteries fry the 12v i'm trying to draw off of just one?
and what if i tried to use both trolling motors at the same time? trouble? |
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Posts: 5874
| Lambeau, you could run that 12v TM off either of the batteries you have. Just make sure you cannect to only one battery. DO NOT connect accross two or all three! |
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Posts: 2687
Location: Hayward, WI | Reef hawg, I read over my post and it wasn't very clear. Yes I do have a 24 volt motor. I should have said that I hook up my trolling motor to both batteries (pos to pos of batt 1 and neg to neg of batt 2, with jumper to remaining pos and neg terminals). Then, I hook up the outboard, accesories, and bowmount depthfinder to one battery, and my rear mounted depthfinder to the other battery. My reasoning for this is that my motor will charge the battery after it gets run down from running a bilge pump, livewell, boat lights, etc. This should keep the two batteries close to the same charge. Since the Vexilar doesn't take too much power to run, it's pretty close. Also, by having the rear mounted depthfinder on a different battery than the outboard I can reduce possible interference while I'm running as well.
Over on walleyecentral.com a lot of the guys made it sound like this was a bad idea because you "could" have uneven discharge of the batteries. Also, if the trolling motor runs your batteries down, you will have no starting battery.
I have a 65# Maxxum, on a boat that probably doesn't make 700 pounds. I can run FOREVER on a charge, so running the batteries down isn't an issue. I also have a 40 tiller, and can pull start it if I need to, so dead batteries won't leave me stranded. As far as unequal battery discharge goes, doesn't really seem to be a problem.
I have a 16' Sea Nymph BT, and finding room for three batteries would be a challenge, not to mention I don't need the extra weight either. This system works well for me! Hope this explains things a little better!
curleytail
Edited by curleytail 10/11/2006 1:58 PM
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