Looking today the chargers have 5 wires going in, in total. 3 big ones, maybe 8 gauge or something like that. Those are for power in no doubt.
There are also two small wires, a blue and a white, that I assume are for data. Enable the charger, tell how much current to draw, stop if battery overheats, etc. I experimented by disconnecting those two and charging at home on 240v.
With both connected I got the usual level of charging for home, but with one connected I got a new level I hadn't seen before, 2.9KW. I didnt try it with 120v. I verified the disconnected chargers fans didn't do the usual spin up when they first plug in. A banner appeared, Error: Charger Not Connected, then disappeared.
So.... even if my work does not fix the chargers, I think I can work around it. I'm going to install in the under tank storage bin two dual contact switches. They will be in series with these blue/white wires to the chargers. I can then enable/disable either charger. That way it draws a low enough current that this problem doesn't occur at work, whatever it is. I'll alternate chargers each week to even the wear on them.
The connectors for the wires that bring this data to the chargers are Deutsch DTM04-2P , the female, and DTM06-2S, the male. learned these are quite common and there are knockoffs on Amazon that are super cheap.
Using the switches, connectors, and some wire I can make something that plugs directly into the harness without otherwise modifying the bike.
Im assuming it does not damage the chargers to have voltage present on the input side if they are not turned on. Hope Im not wrong about that.