I have a Perko disconnect switch on both house battery and solar battery bank. I can run the TT off of one battery or combine them and run it off 4 batteries. Switches and fuses should be used where ever possible to avoid shorts and running the batteries down while in storage.
2013 Silverado 2500 HD Duramax/Allison Tuned
Aviator Wright Flyer #1919
"First In, Last Out". 11B4Y
DAV, MOPH, VFW, 5/7 Cav,1/8 Cav Assoc.
11th ABN Pathfinder Co. N7MIP