I finally had a chance to get the model number from my converter (which was under the stairs).
For anyone else wanting it...
Model is Iota Engineering DLS 75.
I also did a little research and found that this is not much of a battery charger. It's really a 13.4 volt power supply that can push out 75 amps. While this is good as far as it goes, it is not the converter you want for a battery you want to take boondocking.
If you're the type of RVer who always stays in parks and you don't mind replacing batteries every few years it's a decent choice. But, it can't fully charge your battery and it might harm it over enough time by allowing sulfation.
I also discovered (by snooping on the Iota web site) that there is this nifty little option called the IQ4 Smart Controller (lists for about $30.00) that turns the DLS 75 into a real 4 stage converter. You just mount it near the converter and plug it in to a little port on the box (looks like a telephone connection).
I'm going to do a little research on this and will post more when I get smarter. I think (so far at least) that it would be the best $30 dollar upgrade you could ever make on your RV.
Why this isn't SOP on the Big Sky, I'll never know but I'm starting to feel a little blue over the big sky.