Thanks for the input guys.
I've pulled out the aux battery tonight and put it on a 240v charger. Will start with a fresh battery.
Called in to battery world today and was told that my battery is part of the problem that and the solenoid setup is old technology and I should've gone for a bc/dc. Starter battery is good at about 90 odd % aux was at about 50% after the fridge being on since yesterday with a 30 minute drive.
Battery is (see pic) not a deep cycle, but more a continuous use. I was told that because it has cca it's not the best for what I want to use it for.
I think the solenoid setup is enough, but a true deep cycle battery would be better. Will see how it goes with this one after it comes off the charger and no leaving the radio on.
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