Someone correct me if I'm wrong, but I don't think the "Consumed Ah" is a running total. It's the amount below your capacity that you're currently at. It's the amount consumed relative to what is available. If you're adding power back (solar, shore power ...) that number will slowly be reduced.
edit to add that if your solar is keeping up with your usage, the consumed Ah will remain at zero.
The 12V fridges, paired with lithium batteries and solar, work quite well. They just "work". No muss, no fuss. Lots of threads here with reviews and measurements.
I've had a 12 volt fridge for over three years now. Never going back to a 3 way propane. 12 volt Gets cold fast and stays cold even in the summer. Sold my '21 T@B and made sure the new camper also had a 12 volt fridge (larger). Just got back from our first three week 2,500 mile trip with it and didn't even have to think about the fridge temp once.
@pthomas745. Thank you, I baby my camper and have had very few problems. Now the search for replacement batteries! I'm sure I'll go with lithium....just based on the expected lifespan.
Thanks again for all the support. This is a great group!
Don't own the camper yet. Looking at buying it but not impressed with 12v refrigerator. Would prefer propane. Thanks for your help.
You may want to research that more. The old absorption fridges that run on propane are outdated. Current battery and solar technology along with dropping prices have made them obsolete. A 12V compressor fridge can run indefinitely with the right battery/solar setup. A compressor fridge can hold food safe temperatures consistently regardless of outside temps. That was not the case with our old 3-way. Getting rid of it and replacing with a 12V was one of our best mods.
Don't worry about your tow vehicle's battery. There isn't enough voltage through the 7-pin harness to reach the charging threshold for a lithium battery.
The simplest upgrade is to just swap out the lead-acid battery with lithium. Make sure the new battery has low temperature protection (most do). If you then change the solar settings for the lithium battery, you'll be in business with minimal effort and expense.
Note that the WFCO "lithium-ready" converters aren't really ready. They don't sense lithium easily and like to revert back to lower lead acid charging on a whim. If you want to use one for charging from shore power, you'll really need to contact WFCO, remove the converter, and send it back to the mfg. for modification. I'd suggest using a Victron portable charger instead. I use a Victron Energy Blue Smart IP65 Smart Car Battery Charger 12V 15A with a quick connect adapter wired to our battery. You can plug the charger into shore power running the charger's cord through the trailer's front window to an AC outlet inside.
There is 12 volt wiring near by so I can connect in. I looked at the sizes that they use for a brand new fridge going into a 320 and the size is the exactly the same as this fridge so it should fit