Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks


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styleline51 #372375 07/20/16 06:08 PM
Joined: Nov 2001
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ChatMaster - 15,000
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ChatMaster - 15,000
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It is true that current for the same wattage (required power) is double for 6 volts compared to 12 volts. However, the power required is determined by the load not the wiring. The only problem is if the wire gauge is not sufficient for the current then a voltage drop will occur. In the case of a GPS, radio, cell phone battery or other electronics the power requirements are so low that there will not be a voltage drop due to high current draw on 6 volts. If you use a cigar lighter socket then the 6 volt wiring is larger gauge than for a typical 12 volt socket.


How Sweet the roar of a Chevy four!
Chipper #372391 07/21/16 03:20 AM
Joined: May 2002
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ChatMaster - 6,000
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A lot of GPS and cell phones have a voltage reducer built into the charging circuit and actually operate on 6v. If you can use a multimeter fully charge the unit remove the battery and check the voltage. Some have the reducer in the plug, others have it in the unit itself though some have it between the internal battery and the load others between charging socket and battery.
Tony


1938 1/2 ton Hope to drive it before I retire
styleline51 #373276 08/05/16 09:55 PM
Joined: Sep 2007
Posts: 183
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Sep 2007
Posts: 183
Some time ago, when CBs' were the rage and every had one, I
bought a 6V to 12V converter from Radio Shack, who is now out
of business. I have it wired with a concealed toggle switch to
avoid battery drain when not in use. I wired a cigarette lighter base to it for a power source, and the converter and
lighter base are concealed under the front seat cushion until
needed. I also have a Garmin GPS, and the battery will last for 4 to 5 hours, but I just turn on the converter and plug in
for extended use. It was not expensive, and has been trouble free all these years!


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