In 1964 the Bambi II came with a power transformer known as the “Univolt”.  It converts 120 VAC from the hookup at the campsite to two lesser voltages: 12 VAC and 18 VAC.  The 12 VAC is for the interior lights and the 18 VAC is for the water pump.  Because it produces only AC power it DOES NOT charge the battery.  You actually have to switch between using battery power and Univolt power because you don’t want the Univolt backfeeding to the battery!

Well, all of that is history for our little Bambi.  I have replaced the Univolt and switches with an AC/DC converter and fuse panel.  I also installed an “Electrical Management System” that protects the trailer from faults and surges coming from the campsite hookup.  I bought everything from http://bestconverter.com/  They were very helpful in pointing me to the components I needed.

After installing, my LED lights no longer flicker at an annoying 60 Herz (because they no longer run on AC).  And when my trailer is plugged in, the battery is recharged.  And I don’t need to worry about electrical faults at the power pole.

Now I just need to make a wiring diagram so that I don’t forget how all of this goes together!