Finally, I was able to get near EA Chargers with 51% battery after driving ~ 70 miles on highways.
So lets compare what happened on 50kW free charger and EA $$ charger:
*** Public Free DC 50kWh charger
75% @ 392V*120A=47kW
78% @ 395V*109A=43kW
81% @ 394V*88A=35kW
86% @ 395V*59A=23kW
90% @ 398V*59A=23kW
92% @ 399V*45A=18kW
*** EA 150kW $$ charger. Total paid: $5.19, Energy delivered: 10.57 kWh, Max charging rate: 58.96 kW, Time: 00:13:00
53% @ 55 kW
62% @ 57kW
67% @ 58kW
77% @ 44kW
79% @ 36kW
82% @ 27kW
According to https://evbox.com/electric-cars/hyundai ... q-electric
: The max. charging capacity this car can handle is 70 kW.
So there could be an improvement in the warm weather to reach max charging rate of 70 kW.
What is interesting from the EA session? I got 32% battery charge boost with 10.57kWh, I used heater for less than 10 mins at 39F ambient temperature and car was 4F below target temp, so effort was minimal to keep it warm (1kWh*10/60=0.17kWh). You can observe the heater draw with rate boost from 57kW to 58 kW between 62 to 67 % SOC. So, what is total battery capacity usable really? (10.57-.17)/(32)*100= 32.5 kWh. Not far away from my 32 kWh usable battery capacity estimates based on what my car delivers and my own cell voltage vs. SOC research on Ionic EV with Torque Pro app. BTW, 28kWh is advertised battery capacity on Ionic EV.
It is good to have EA charger when you are in emergency, but charging cost would be more than buying gas and driving ICE car, unless your car can pull 150kW, or at list > 100kW to break even. EA charging is cheaper than EVgo and no membership fees. I am spoiled with free L2 chargers at work and other places I visit. I do not even bother to use free DC chargers 24-50 kW available around.