Tell me about the converter in a 2005 TM 2720

I just purchased a 2720 (2005) and did not get any documentation with the unit. It is in really great condition but as a retired computer guy and former street rodder, knowing how things work is part of who I am. I have a couple of pretty basic questions:
1 - Where is the converter located?
2 - The converter is really just a 'battery charger'/eliminator, correct?
3 - How do I get a set of documentation for my unit, PDF preferred. I have found and printed the excellent Mike & Kelly's 2720 PDF, the docs on the fridge, water heater and have found a pretty sad PDF of what looks like a somewhat dated (2002)owners manual.
4 - My unit does not have a battery (I will have one installed before I take it anywhere because of the breakaway requirement.) There is angle iron bracket directly behind the tanks, but I think there should be some kind of 'box' to contain the batteries.

Thanks,

Joe Daddy