battery connection for gps

[gst]

Hi Guys,<br /> I just bought a new Garmin 492 GPS and I was thinking about how to install it. I have a 17' Sea Pro center console with a 24 Volt trolling motor attached to the bow. The trolling motor is powered by 2 12 volt batteries, hooked up in series, located inside the center conole.<br />Instead of routing the power cables all the way through the hull to my cranking battery in the stern I thought may be I would just use the trolling motor batteries. Since they are hooked in series, if I attach directly to one of the batteries I think that would provide the 12 volts required to power the GPS.<br />Does anyone see a problem with hooking the GPS up this way. <br /><br />All comments appreciated,<br /><br />Gary<br /><br />I think I should have put this in the electronics forum, sorry.

 

[tommays]

Re: battery connection for gps

I would think theres power allready pulled up to the console ?<br /><br /><br />tommays

 

[Backlash]

Re: battery connection for gps

Hi GST,<br />It seems to me, if I understand your setup correctly, that you'd be giving the new GPS 24 volts.......not something you want to do.<br />Backlash

 

[gst]

Re: battery connection for gps

tommays, I thought electronics needed to be powered on their own individual circuit to eliminate power variations and noise.<br /><br />Backlash, If I connected to both batteries in series like I do with my trolling motor then I would get 24 volts, if I connect to only 1 of the batteries I think the result would only be 12 volts. If I am wrong, someone straighten me out on using batteries before I screw up.<br /><br />Thanks Guys,<br /> Gary

 

[Bondo]

Re: battery connection for gps

if I connect to only 1 of the batteries I think the result would only be 12 volts. If I am wrong, someone straighten me out on using batteries before I screw up.

Ayuh,....... You ARE Correct......<br /><br />I would think it would be Fine,... Till you used the Trolling Motor.......<br />I wouldn't Count on the GPS during those times....Probably Plenty of Electrical Noise then.......Never tried it....

 

[gst]

Re: battery connection for gps

Bondo and all you guys,<br /><br />Thanks for the replies. I will sure check the voltage with a meter before I hook up the GPS.<br />As far as noise from the trolling motor, I don't think I'll be using the GPS at the same time.<br /><br />Anyway Thanks for the help,<br /><br /> Gary

 

[studlymandingo]

Re: battery connection for gps

You should have a power panel under your center console. I would connect to an empty slot on the fuse panel. Marine GPS units are designed to be run on marine circuitry, the amount of "electronic noise" should not adversly affect the GPS. This way you don't have to connect and disconnect stuff from your trolling batteries whenever you want to use either or the other. Eliminates any possibility of pushing 24v through the GPS, I would think that would adversely affect it more so than noise!!!

 

[Silvertip]

Re: battery connection for gps

I agree with "studly". 12V should be available at the console -- no need to run off the troller batteries or back to the start battery.

 

[cuzner]

Re: battery connection for gps

I,d wire it to you fuse panel... to start. I've had problems with a fish finder wired this way and had to wire it direct (with an inline fuse) to a battery, no such problem with my gps though.If you need to hook it to a battery, personaly I'd hook it to your starting battery, the only time you'll have serious power drop is when you start your engine.<br /><br /><br /> Jim

 

[JB]

Re: battery connection for gps

Electronics topic.