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Old 02-11-2014, 07:38 PM   #1
52merc
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Default gps

okay guys how do you rig up a gps on 6volts
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Old 02-11-2014, 07:47 PM   #2
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Default Re: gps

i put one in my `37 1/2 ton, 6 volt positive ground. a GPS runs on 5 volts, but it has to be negative ground, so i used a "convertor". it changes 6 volt positive ground to 12 volts negative ground, it is an e-bay item, costs about $50.00. anyway, that`s how i did it.
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Old 02-11-2014, 08:21 PM   #3
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Default Re: gps

so where on ebay ive tried converters,,,inverters all get id cars
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Old 02-11-2014, 08:40 PM   #4
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Default Re: gps

e-bat item #
271380501537
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Old 02-11-2014, 08:48 PM   #5
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Default Re: gps

Our GPS will run 3 hours on a full charge so just turn it on occasionally when on a trip in our 46. Then I have a charger that plugs in to 110 in the motel and good to go the next day.
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Old 02-11-2014, 09:02 PM   #6
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A GPS is availible on an iPhone ifbyou have one Thats what I use with a speedometer app.....Mark
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Old 02-11-2014, 11:46 PM   #7
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Default Re: gps

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Originally Posted by 52merc View Post
okay guys how do you rig up a gps on 6volts
Trev, I have been using my 12V Garmin GPS on 6V for several years. I bought a cigar lighter socket/receptacle and hard wired it for correct polarity with the GPS power cord that has a cigar lighter plug on one end. I used a piece of heat shrink tubing to cover the outer socket/receptical housing to keep it from shorting to positively grounded parts on the car.
I also have a small 12V battery power pack that I can use to temporarily power my cell phone, digital camera, ipad or GPS.
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Old 02-12-2014, 12:10 AM   #8
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Default Re: gps

I like to use Microsoft Streets and Trips on my lap top for GPS since I'm more used to reading maps.



The computer battery lasts about 4 hours then, if I need to, I can plug it into my tire pump that's 12 volt rechargeable with a cigarette lighter socket on it. Can be used for 12 volt or 110 volt with the little 75 watt inverter shown.

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Old 02-12-2014, 08:25 AM   #9
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Default Re: gps

I have 6 to 12 converters on all myT's and run them off old Radio Shack converters which you can find on ebay a lot cheaper than the $50 plus rig that shows up regularily. They can be wired for either polarity. You just have to watch on a regular basis and they will come up.
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Old 02-12-2014, 08:31 AM   #10
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Default Re: gps

I cut the power cord and reversed the wires and run it on my '40 pickup. I marked the cord and don't take it out of the truck so I don't use it on 12 v.
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Old 02-12-2014, 08:42 AM   #11
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I cut the power cord and reversed the wires and run it on my '40 pickup. I marked the cord and don't take it out of the truck so I don't use it on 12 v.
The only problem with running the 12 volt GPS on 6 volts with reversed wires is with a generator at idle the voltage gets to low to the GPS and it shuts down and has to be restarted. This occurs in towns just when you need it. With a good alternator you don't get this problem. A small 6 to 12 volt converter works good. These are still available and are about 3"s square. G.M.
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Old 02-12-2014, 11:18 AM   #12
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As they say, your results may vary. But in the last four years using my GPS on six volts I have not experienced any problems. I have a Garmin.
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Old 02-12-2014, 12:12 PM   #13
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The only problem with running the 12 volt GPS on 6 volts with reversed wires is with a generator at idle the voltage gets to low to the GPS and it shuts down and has to be restarted. This occurs in towns just when you need it. With a good alternator you don't get this problem. A small 6 to 12 volt converter works good. These are still available and are about 3"s square. G.M.
I also had some problems with low voltage trying to shut the GPS down when powered by the 6v system. This typically happened while driving at night with halogen lights, especially when the brake lights came on. One thing that seemed to help this was installing a new Optima battery last Spring. This battery maintains a higher voltage level under load compared to the battery it replaced. Also spins the engine better, almost like a 12v battery would.
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Old 02-12-2014, 12:19 PM   #14
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Default Re: gps

I have a small gell battery that is used for under water cameras. Its 12 volt and I put it under the seat with a female lighter pulg in on it. I use it for the gps and charger for cell phone. Lasts along time on a charge. About $15.00 for battery.
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Old 02-12-2014, 04:12 PM   #15
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Default Re: gps

Trev go to a Jaycar store ,get a part AA0264, I have them in my cars,you then get a 12v output to use for a Twoway radio or GPS.
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Old 02-12-2014, 05:32 PM   #16
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Default Re: gps

John, thanks for choosing Optima I don't have a 6-volt vehicle, but I do use GPS without needing to plug in. I downloaded the free mobile navigation app, Waze and run it on my iPhone. The app does use a lot of battery, but I also have a Mophie case, which gives me several hours on Waze at a minimum. I used to use a regular gps device, but I've found the real-time traffic updates (as well as law enforcement & road hazard updates) and re-routing ability to be incredibly reliable and useful. It also has a speedometer feature.

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Old 02-12-2014, 06:09 PM   #17
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Default Re: gps

I'd be careful about trusting Pepe as the navigator. Even with the screen right in front of him, he doesn't seem to care where he's going. Viva Pepe!

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I like to use Microsoft Streets and Trips on my lap top for GPS since I'm more used to reading maps.



The computer battery lasts about 4 hours then, if I need to, I can plug it into my tire pump that's 12 volt rechargeable with a cigarette lighter socket on it. Can be used for 12 volt or 110 volt with the little 75 watt inverter shown.

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Old 02-12-2014, 06:14 PM   #18
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Old 02-12-2014, 06:40 PM   #19
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Default Re: gps

JT FORD, what gel battery are you using? I was thinking that this could also be a solution for running a 12V car stereo. Some of these batteries are getting pretty small and would be easier to conceal than a regular 12V car battery and could be maintained with a Battery Maintainer between uses.
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Old 02-12-2014, 10:21 PM   #20
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Default Re: gps

This battery is a MK 6"x 4-1/2" x 2-1/2" Cabela's, Bass Pro, and automotive supply stores sell them. I have had mine for 7-8 years. I lay it under the front seat. 2 amp
charger is best for it.
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