Since copper price has dropped I was thinking about running some copper wires from my start batteries to my house batteries. Do I run 2 or just 1 and use the fram as ground? What gauge should I use.? Model 10........ thanks guys
If you have good grounds you should only need the one cable. You do need some kind of switching device (Manual switch, solenoid, diodes etc.) Otherwise you end up with a single large battery bank. If you run the batteries down while camping you wont have anything left for starting.
Lots of info in the archives on this subject.
Len,
I agree that there must be a ton of data. What would you suggest for a search term(s).
Thanks,
John
I have a big question...... :o
Does your starter run off 12volts or 24 volts? ???
Bill
12 volts... What size gauge?
I used 0000 cable on mine. You might want to read this thread:
http://www.busconversions.com/bbs/index.php?topic=6186.0
Since I did what was suggested I haven't had any more problems and my system is working very well.
Mine is 12 volt, also.
David
You might also consider to use the continous duty relay from your OTR A/C, if removed, for isolation purposes. My set up is some different, 24V start, 12V house, with a vanner equalizer between. My relay only pulls in while engine is operating. Thus during dry camping my start batts are disconnected.
Hope this helps and good luck.
Gary
I do not recommend using the frame to carry the return current. Run two wires.
What gauge you need depends on several factors:
-How long is the run?
-How big is your alternator (peak output amps)?
-Will you be using this mechanism for emergency starting purposes, or only to charge house batteries?
Until you answer those questions, it's impossible to tell you what gauge to run.
-Sean