2nd battery
I just purchased a 2017 Thor 29FE. I noticed that there is only one 12V house battery. But, there's room beside it for a 2nd battery. My previous Class A had 2 batteries. Is it advisable to put the 2n...
Forum Discussion
crasster wrote:
I'd do 2 6V golf cart batteries in series for 12V. They are made for brutal charging/discharging and also seem to last for a good long while. You don't HAVE to add anything though, you'll just have less longevity if you are dry camping. If you only need lights, it should be no problem. 12V to the fridge, PROBLEM (4 batts suggested for overnight).
To be more specific, 12V for the fridge is a problem with one battery if the fridge is a three-way fridge running on 12V power. More common these days are two-way fridges that run on either 120V power or propane, and generally these require a tiny bit of 12V power for the control circuitry and would be fine with a single battery for a night or two at least. (A three way fridge on propane will likewise not need much 12V power.)
Usually the three way fridges don't have as much cooling capacity on 12V power as they do on propane or 120V power as the 12V heating element is undersized.
