Wiring question

Darrendude

Petty Officer 2nd Class
Joined
Nov 16, 2004
Messages
145
Does anyone see a problem with running my fish finder off of 1 of my 2 trolling batteries, wired for 24 volts? Would it drain that one battery significantly? Its humingbird matrix 25. I have it wired that way now and it works fine , but haven't trolled much yet (omc cobra on the mend)<br /><br />Thanks
 

Darrendude

Petty Officer 2nd Class
Joined
Nov 16, 2004
Messages
145
Re: Wiring question

I also have my stereo /cd hooked to the same curcuit.
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: Wiring question

I got my front fish finder hooked up to one of my batteries in front Darren. My OMC troller is a stright 24V. Haven't had no problems and it's convenient. Don't have to run a wire way back to the rear of the boat.
 

crab bait

Captain
Joined
Feb 5, 2002
Messages
3,831
Re: Wiring question

to the true battery guru's ,, yes.. but like OBJ says,, it's works an does well..<br /><br />i had a small 'radio shack '12 volt house alarm battery once that i hooked my accessories to onetime..because of your same situation..
 

ThomWV

Senior Chief Petty Officer
Joined
Dec 19, 2003
Messages
701
Re: Wiring question

It will be fine. Fish finders are not big electrical draw devices. In general very few of the LCD versions draw even an amp, generally more like between 0.5 and 0.8 amps. Also, it is a constant state drain, just the sort of thing your deep cycle batterys are made for. There is one thing however, and it may work to your advantage in a way. At some point you will have depleted the batterys by use of the trolling motor to the point where the fish finder will cut off from inadequate voltage. That will be your signal that its time to go home. Of course you'll have to find your way home without a bottom machine. I don't know about you but I never feel comfortable running back inshore in that shallow water without a depth finder.<br /><br />Also there is this, and you will have to figure it out for yourself because I don't know if it means anything or not. I have seen electronics sold in which the company said that they would operate within some broad range, like 11 to 32 volts, but then also say not for use in 24 volt systems. I do not know why they would say that (I've seen it with both Raytheon and Furuno gear) other than they might mean that the equipment could stand a spike in voltage that was pretty high but that it could not handel sustained high voltage. That's just a guess though, I really don't know.<br /><br />Thom
 

Darrendude

Petty Officer 2nd Class
Joined
Nov 16, 2004
Messages
145
Re: Wiring question

Thom,<br /><br />The FF sez it will operate from 10volts to 18 volts. If it got to 10 volts Im sure the battery would be dead, I think. I have it wired to only 1 of the batteries that are wired in series. That gives me 12.8 volts to the FF. The FF has a voltage meter on it and it reads 12.8 volts, so Im not worried about a spike in the voltage, atleast I think I am correct in this observation.<br /><br />Thanks for the input
 
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