Source for the underlined text is bro1999's own blog post https://bro05.blogspot.ca/2017/03/fast-charging-experiences-with-bolt.html :So GM told you that it would charge slower than a Spark EV and start throttling around 50% SoC in big steps?
I must have missed that thread. The only thing I remember GM communicating was the 90 miles in 30 minutes, and I remember a whole lot of speculation here about how much faster the car might charge.
Not saying a hidden counter is acceptable if such a thing actually exists, but I don't feel like either company has communicated clearly on the subject
The Tesla owner 90kWh battery cars case in question is currently getting 90 kW charging rate max. In my 90kWh battery car case, I taper down over 10 minutes and stay at 80 kW for 20 minutes see this chart.The Bolt tapers the max charge rate fairly early compared to say the Spark EV.
While Spark EV owners reported near 50 kW rates from 0% to almost 80% SOC, I've noticed the Bolt starts tapering rates at
around 50% SOC (ramps down to ~38kW/~100 amps) and
again at 70% (down to ~24 kW/~60 amps) from peak ~46 kW/125 amp charge rates at a 125A station.
At a little over 80%, the rate again tapers down to <20 kW and stays there till fully charged.