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J Witt · 03-04-2016, 09:06 PM

I have a new Garmin Nuvi 65 in my '31 and it seems to work just fine on the 6V system. The non-running voltage is 6.4 Volts and it turns on and operates on that voltage. The the running voltage is around 7 volts or so, depending on how hard the alternator is charging. The Nuvi spec is 8 to 28 volts DC.

I have the positive terminal of the car power supply plug tied to ground and the negative (ground contact in the 12 volt system) connected to the hot side of the power feed through in the Model A.

There had been some discussion about this earlier, so thought I would provide another data point.

John

03-04-2016, 09:06 PM	#1
J Witt Senior Member Join Date: Mar 2015 Location: Acworth GA Posts: 534	Garmin GPS in Model A I have a new Garmin Nuvi 65 in my '31 and it seems to work just fine on the 6V system. The non-running voltage is 6.4 Volts and it turns on and operates on that voltage. The the running voltage is around 7 volts or so, depending on how hard the alternator is charging. The Nuvi spec is 8 to 28 volts DC. I have the positive terminal of the car power supply plug tied to ground and the negative (ground contact in the 12 volt system) connected to the hot side of the power feed through in the Model A. There had been some discussion about this earlier, so thought I would provide another data point. John __________________ Houston, Tranquility base here. The Eagle has landed.