24 Volt System

[bmwcody]

Recently I bought a 1999 alumacraft tournament pro 175CS and am replacing the 12 volt trolling motor with a 24 volt motor. My question is what type of wiring modification (if any) do I need to make to ensure my depthfinder, which is rated for 10-17 volts, doesn't short out. I believe the depthfinder would feed off the same power as the depthfinder. I'm looking to buy a new lowrance and obviously don't want to fry it. My boat has a 2 battery platform with 4 connecting wires, 2 red, 2 black. Can I just hook them up to 2 batteries and not worry?? Thanks.

 

[gonefishie]

Re: 24 Volt System

I got a feeling this gonna gets move to electronics. Anyway, you'll need bigger gauge wire from the batteries to the TM. That's the only mod. you needs in addition to adding a third battery for your 24v TM. One batt. dedicated to your big motor and all on board electrical need. The other 2 dedicate to the TM and NOTHING ELSE.

 

[JB]

Re: 24 Volt System

Gone to Electrics.

 

[bruceb58]

Re: 24 Volt System

How many batteries are in your boat? If you have one battery, that is only used for starting your outboard motor, I would hook up the depth finder to that battery.

If you only have two batterries, you can hook up your depth finder across only one of your batteries and you will be fine. Your engine is probably only across one of those batteries as well. Of course, only one battery will charge via your boat engine in that type of configuration.

Might be nice to give us more info on your battery config and we could help you more.

 

[wigbuster]

Re: 24 Volt System

I also have a 1999 alumacraft tourney pro. There are two battery tubs for the trolling motor each with there own wire harness. I have two batteries connected to each harness. I am wondering if when I plug the 24v trolling motor in at the bow that I am just running the motor with two 12v batteries and not the 24V I was hoping for.
The connector at the bow has 4 prongs on it. Does it matter how you connect it as far as orientation?
There is no 12/24 v selector switch in the bow console.
Could you please give me a way to check this because I would like to use the existing factory wiring harnesses for each battery. Otherwise I would have to route one heavier gauge wire to the battey tubs which I am trying to avoid.
Regards,
wigbuster

 

[Silvertip]

Re: 24 Volt System

Didn't I answer this yesterday?

 

[wigbuster]

Re: 24 Volt System

Didn't I answer this yesterday?

I don't see your response Silvertip. Can you point me to where you answered the question?

 

[Silvertip]

Re: 24 Volt System

Here is what you have. There are two totally separate two-wire circuits going from the batteries to the four-terminal RECEPTACLE at the bow. The black wire at the top of the diagram is normally connected to the negative terminal of the battery on the right. You disconnect that wire and connect it to the negative terminal of the battery on the left. FOR SAFETY: Disconnect but do not cut or remove the existing red and black wires on the battery on the left. You then add the green jumper. With those simple changes you have 24 volts at the top two terminals on the RECEPTACLE. You now wire the matching PLUG so the red and black troller wires match up with the 24 volt terminals on the receptacle. The bottom two terminals will be unused since you disconnected them at the battery.

If the trolling motor plug you have has an internal jumper then follow the instructions for 24 volt connection. You would not need to make any changes at the battery if you use a plug with a jumper.

 

[NYBo]

Re: 24 Volt System

If this thread was a person, it would be entering kindergarten in a couple of weeks.