Join Date: Oct 2018
Location: Prescott, Wi. Upper Ms.River bluff country
I'm not sure how your Garmin is hooked up, but I had a similar problem with powering my Rand McNally TND 530 on the bike. I was using a generic "acorn" usb plugin inserted into the 12v socket, and a usb>micro usb connector to the unit and it would randomly drop. Using the clunky 12v power cord the unit came with, I have no problems, nor do I have probs charging my phone from the same acorn-cord devices. Apparently, there is s some proprietary circuitry in the stock power cord head.
"It is amazing what you can accomplish if you are not concerned with who gets the credit"- Patrick Griffin
18 wheels move the cargo, 4 wheels move the body, 2 wheels move the soul -unknown
“Of all the paths you take in life, make sure a few of them are dirt.” - John Muir
I visited the Air & Space Museum- didn't see a thing...