GHD posted:Interesting! Just curious where you put the 18 volts into the system. I assume to the input side of the TIU . Is this correct?
Yep, That's correct. The TIU received power from the battery off of the Fixed input 1 and the second battery was wired to the Fixed input 2. I also did use a WIU which was easily powered from a portable cell phone charging bank with a USB A to MINI B cable.
One very dangerous thing that I did was not using any circuit protection. As this was quickly thrown together, I didn't have any fuse holders or breakers to install between my TIU and the Battery. Keep this in mind if you attempt this setup.