Originally Posted by Techn0
If you have 4 6v Harris batteries, you have about 100 amp hours total. With your residential refrigerator plus other parasitic devices, you have about 12 hours of battery before you need to charge... that is if the batteries are performing well. In my experience, the Harris batteries were not well maintained from manufacturing to installation so you can count on about 8 depending on whatever else you use, or lights tv etc.
I think your right, most of the problem with the batteries is the way they were treated before they were installed in a coach and it was sold. I've been told they are stored in damp areas, allowed to completely discharge, charge up, discharge again and again, which is basically mistreating a battery, and insuring early failure.