Running a Dometic fridge on 12V

[avanti]

Originally Posted by bigfelipe

How long can you run one of these new 12v comp fridges on battery? Are they viable for boondockers or is the tech not there yet?

My NovaKool 6800 (a large fridge/freezer) consumes around 6.7 amps when running--by actual measurement. So, at a 50% duty cycle, a single 110Ah taken down to 50% would get you maybe 16 hours, assuming no solar and no engine recharging. I have four such batteries, modest solar, and a second-engine alternator. With this setup, the fridge is a modest part of my power budget. Driving for a short distance every day replace the consumed power.