Fridge running on 12v would flatten a battery in about 30 mins. However, Fridges 12v normally only connects to car battery and is usually connected only when ignition is on and often only when engine is running.
Originally Posted by Spinksy50
Thanks for photo, I don't know that particular panel but hopefully someone else might. Do you know the make or Model. Your symptoms sound like you are running all 12v off cab battery and that your charger is only connected to hab battery. Any other panels visible?
To get home you could consider swapping hab/cab batteries or jump starting from hab batery.
"Life is what happens to you while you're busy making other plans."