12 volt frig question.

As the other responders said, yes. But, let me give you an experience based suggestion. Since you are installing 8ga charge wires to the camper, consider installing a DC-DC charger in the camper as well. You will have wires of sufficient size to support one of about 20-25 amps (I’m guessing). Your fridge will perform noticeably better in DC mode with the help of the DC-DC charger. It will maintain the battery voltage at a much higher level, and you won’t see the “death spiral” of lower voltage means more amperage means lower voltage, etc.

In milder ambient temps, with the fridge in DC mode and the thermostat set at its mid point, I’m pretty sure it’s actually cycling the DC heater, and I see the fridge temp being maintained well within the safe zone for milk, meat, etc. it’s a little harder for me to tell if it’s cycling in DC mode while driving, since I can’t see the Trimetric panel.

Look at the Renogy units, they are very price competitive now.

:):)

It depends on the model, some are, some are not. If your has mechanical controls, most likely it is not.

YES.........
12V DC heat element is controlled by thermostat setting

12V DC is only a good option while in transit so vehicle alternator can maintain battery charging

12V DC is good for keeping fridge COLD while in transit...provided door is not opened often or open for very long.

In theory, yes.

In real life there are too few watts of heat produced by 12 volt, so it almost never cycles. Output varies by the square of the voltage. My fridge draws 34 amps on 12 volts, and because the wire is too small to support that there is significant voltage drop.

The only time the 12 volt works well is when I'm already plugged into shore power--so why the heck would I bother using 12 volts when I can use 120?