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...
There are virtually no true deep cycle wet cell 12V batteries. If you want true deep cycle performance switch over to 6V golf cart batteries. They are inexpensive and widely available.
Learn to read you battery voltage and what it means as are as charge and you will soon learn to interpret how "empty" your batteries are.