How to Determine if Battery Bank on 5th Wheel Trailer is Wired in Series or Parallel

Question:

2004 Glendale 5th wheel On the 3 way switch I have power wires going to 1 positive of the batteries. Should all the white neutrals go to the other positive or negative on the other battery?

asked by: Chris

Expert Reply:

That depends on how the batteries are wired. If the battteries are wired in series like I believe they are that would mean you have two 6 volt batteries wired in a way that makes the output 12 volts. If they were wire in parallel it would be to 12 volt batteries wired so that the output is 12 volts. Check out the picture I attached that shows how the different style of battery wiring look to compare to what you have.

expert reply by: Jameson C