I'll try to get a voltage reading, but it will be a bit difficult with the casing torn apart. They really have a ton of wires and stuff crammed into the plastic housing, it's quite a mess. I would assume it is higher than 120v, though I could be wrong. Looks like the stator has 3 different sets of wires coming off of it, not really sure why.
Mostly just wondering if there is a modern charge controller that can deal with such high voltage DC, I'm not really familiar with the different types available these days.