Electrical Systems – Part 3 Posted on August 4, 2013 by Martha Wiring simplified – OffCenterHarbor.com and Professor Eley walk you through a simple two-battery system. You can check out Part 1 of this series here, and Part 2 here. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Google+ (Opens in new window)Click to email this to a friend (Opens in new window)Like this:Like Loading...