To somewhat answer my own question. ive been tinkering and talking to tesla a bit.
the old chargers won't charge a newer battery UNLESS it's system is designed like the tesla / gm to go from lower power older chargers to the higher voltage systems. The Tesla and id presume the GE shit, has a built in boost/buck converter so that yes even though the older standard CCS1 charger will only top out at 500 volts, their vehicles WILL work on that, will take it and convert to the 820 volts the cyber truck battery is running at. obviously there are some losses with an extra conversion step, and heat, but the system will work. if you are diy'ing it, then no the lower volt charger won't charge even partially a higher rated volt pack, as it'd just fault out.
I am seriously looking at getting a cyber truck and after talking to my accountant, think i may be able to write it almost entirely off on my business. yes i still pay for it but it's reimbursed from tax burden, which means just chaching the 401 and flip the taxes paid back into your pocket - or truck. then reinvest 401 into normal account that is already tax paid on, so from that point forward, only interest is taxable, but that's workable too....
anyways...
with that and my charger for the bike, was wondering if it'd work properly. yes it does. i can even use the tesla to charge my bike, and sleep in too at the track. ill sleep up front, put the buzzard in the back if he gets too pesty. hot diggity, time to go racing nation wide now. once my crap is healed up.
Aaron