Today, I had to go on a long drive (ended up being 208 miles) and it was very hot in the Bay Area. I saw my car's outside air temp indicator get as high at 106 F. Today, my city supposedly got to 100 F.
During part of my long drive, on on the Bolt's screens, where it shows you what % of battery was (so far since last "full" charge) was used for driving and accessories vs. climate settings vs. battery conditioning), I saw battery conditioning go to 1% and then 2% during the hot afternoon.
Also, tonight, even though I didn't need it to make it home, I decided to take a detour on my return home and try one of the very few free DC FCs. I'd never been to that location nor city before. Was also my 1st time personally starting and plugging in SAE Combo. (I don't normally ever go to that area and rarely that direction besides the DC charger being 50 miles from home.)
It unfortunately was one of https://www.chargepoint.com/products/commercial/cpe100/
(24 kW max), but I knew that ahead of time. The unit is goofy in that even though SoC was fairly low at the start (37%), I was only getting 19 kW but rose slowly and steadily as the battery got fuller. It got to 20 then 21 kW before I took off when the battery was at 79% full. I wasn't going to keep waiting around as I'd been there for over 1 hr, 20 minutes. I sucked down 27.6 kWh. Location was https://www.plugshare.com/location/78995
and there have been complaints of low output. I didn't bother taking a pic of the label but the one posted on Plugshare shows output of 350 to 460 volts DC, 55 amps. I guess I can understand the low output in kW if the overall vehicle voltage is low and this DC charger can only output 55 amps. 350 volts * 55 amps = 19,250 watts = 19.25 kW.
It's a lone SAE Combo only DC charger, near a large bank of Tesla Suprerchargers. I'm not clear why it's set to free.
The above DC charger is also a bit weird in that its fans (which spin up when charging) are quite loud but I really didn't feel much airflow in or out of its vents.
At some point after 75% or so SoC (still going at full speed), I heard my car's thermal management kick in, a first for me.
It's fairly loud and sounds weird. I opened the hood could feel a ton of hot air entering the "engine" compartment due to the fans pulling air thru the radiator.
Outside air temps were below 70 F at the time.
Prior to this, the only charging I'd done recently on the car was a top off to 100% on L1 (long story as to why) that ended at by 11:30 am. The area that was my destination wasn't as hot w/OATs at the high 80s during the day and eventually below 70 F.
If I find some time, I plan to eventually dig around about what OBD2 dongle I need then get the Torque app and the necessary PID file for the Bolt. Bolt has no battery temp gauge or indication anywhere in the car's UI.