fridge and batterys again sorry .

Guess it will depend on how often you will dive around and for how long

I would add a 65 watt solar panel and you won't have to turn the fridge off......I currently run two when I am out in the bush.

I think that you will be disappointed, both that your fridge will use 12 amp hours per 24 and your car will put back 25 amps per hour.
Do you also intend to drive EVERY day?

It will depend very much on ambient temp how much the freezer uses but I would guess Min 1.5 amps per hour or 36 amp hours per day.
For example my Engel 40 litre will last about 3 days with low night temps but 2 with high temps on my 95AH AGM when used as a fridge at 0-4C.

I have 2x85 amp alternators with one directly connected to my 95 AH AGM. It will charge to say 85% in 2 hours but the final charge will take maybe another 4. I assume this from the voltmeter reading about 13.8 on charge after 2 hours and slowly rising to 14.2 after another 4 hours. So while you might get 25amps for the first hour or so, and that is doubtful, it will taper quite quickly as the battery charge rises.
I found when in NT , I had to run the car for half an hour after only 1.5 days to be sure of getting to the next morning.
I am looking at a minimum 100amp solar panel or genny for my next trip to hot climate.
So horses for courses but I think you are being very optimistic, unless you plan only cool weather camping.
Regards Philip A

To give you a starting point, a 85 litre evacool on freeze might use say 3amps per hour or 72 amphours per day.

You'll want to run your vehicle each day.

Regarding the AGM, I prefer to not have mine under the bonnet - it goes in the back. I want it to last a long time, and heat, particularly in the confined space under the bonnet of a troopy will shorten its life.

I've got two Extremes under the bonnet and one AGM inside my canopy. Maybe this would be better for you. I keep my Extremes permanently paralleled, so double my cranking power and run other accessories off them. My isolator feeds the AGM in the back which runs the fridge.

Thanks for that info fellars .

" I figure that maybe with frozen water bottles in it and turned off at night it would use maybe 12 amps per 24 hr . Does this sound right . I think a troopy puts back about 25 amps per hour driving around "

Your generator instantaneous fuel consumption may be measured in litres per hour but electrical units are different.

Instanttaneous draw is measured in amps. e.g my fridge draws 5 amps when the compressor is running. The alternator puts out 25 amps.

Total consumption over time is measured in amphours. e.g my fridge uses 12 amphours per 24 hours.

If you use the wrong units, people will misinterpret your question.

Troopyman

I have the usual main battery and aux battery setup under the bonnet and I have two more 120ah AGM battery's behind the pax seat. I have two 80 watt solar panels mounted on the front of the roof rack. Provided I have good sun, this setup will run my evaKool 70L Fridge/Freezer easily although I have never stayed in the one place without driving for more than 2 days. There are some pics in my profile.