That's what I figured as well and I'll have to see what happens with future chargers. What made me key in on this was that the EVgo charger started to taper off when my car was only at 50% and by the time it reached 60% it was only charging at 22 kW. The other charger I mentioned stayed at 30 kW all the way up to about 90%. In both cases, I started charging at about 20% left on my battery with the same battery temp and outdoor temp.