Originally Posted by JDOnTheGo
If always connected to shore power, it doesn't really matter. If you plan to be boondocking and running your inverter as little as possible, go 12 VDC.
Many of the 12 VDC USB converters have two sockets, a 2.1 and 1.1 amp (@ 5 VDC). Assuming that's the direction you're going. You'll be pulling something under 2 amps @ 12 VDC when maxed out. Lots of voltage drop charts online but 16 GA keeps you under 3% voltage drop for a 20' distance. 18GA is only 4% drop.
Thanks so my math was correct that itís minimal amperage on the actual 12VDC circuit
We will be off and on shore power depending on where we go.
Biggest thing is we are powering a small 120v refrigerator off the inverter.
So I canít ever really turn the inverter off completely.
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