Below is the charge curve for my Bolt. When I charged it was about 80F and the car was at 20% SOC. I was charging on a 75 kW DC charger. The car jumped right up to 50 kW and pretty much stayed there until 50% SOC and then it started to taper. In 30 minutes I gained 40% SOC and 100 miles of range.
The thermal management is a bit odd to me. Even though the battery temp started at 82F the battery heater came on and the battery pump went to 90% until the battery reached 88F. Then the battery heater turned off and the pump dropped to 55%. Battery temp stayed in the high 80's F until 54% SOC and then the A/C turned on and the pump jumped back to 90%. The A/C cooled the battery down to 55F and then turned off. The pump went back to 55% and the temp started rising again until it got back to the high 80's F and then the cycle repeated: Turn on A/C, cool to 55F, turn off A/C, let temp climb to high 80's, repeat.
The last 10% of SOC is quite inefficient and the last 1% is even worse. Even after the screen reached 100% it was still charged for 10 minutes as the RAW SOC was still climbing another 1%.
