Wiring Diagram Rv Solar System - first we ll cover the ponents of our solar system no not that solar system the one on our rv here it is in a nutshell now that sounds like a short list but trust me it is not don t just rush out and buy lots of solar panels for your rv figure out if you actually need them first i ll show you how in this post i just found out that on the pickup forum on the trailer life forums web site there is a posting of this unit catching fire in a pickup c er lord knows what would have happened had the owner not been there and smelled it burning take a look at the photos and read the responses from the pany scared me out of doing this mod span class news dt jan 01 2015 span nbsp 0183 32 nope 2 6vdc batteries is series pos of 1 to neg of 2 create a 12vdc battery of the same erage 2 x 300 hour batteries 6vdc in series will yield a