I DCFC'd my car for the first time today with the new battery pack. Three new pieces of information to report:
1) My car DCFC'd straight up to 94% without stopping!
The 2015 Soul EVs are software-coded to stop charging at 84%, and we could manually initiate a 2nd charge which will bring it up to 94%, after then it will stop again. This behavior is also clearly mentioned in the 2015 Soul EV user manual. I verified this behavior multiple times with my previous (original?) battery pack, and it always stopped DCFC'ing at 84%.
I know that 2016+ Kia Soul EVs removed this original limitation of stopping at 84% and only stopped once charge has reached 94%. This could potentially mean that this new battery pack replacement that I've received was originally intended to go into a 2016+ Soul EV. Either that, or the new BMS that was installed is again from a 2016+ Soul EV so it was software coded to stop at 94% instead of 84%. (or both!)
As an aside, on 125A 50kW DCFCers, I notice that the charge from 0 - 83% is quite fast (~45kW), and it slows down from 83%+. Especially 90% - 94% is quite slow (< 10kW).
2) I took a 300+ mile road trip which required driving fast at highway speeds, as well as multiple DCFCs back-to-back (4 in total). Ambient temp was in the low - mid 70s. After the 3rd DCFC, I noticed that the battery temp was getting pretty warm at 100F. After the 4th DCFC, the battery temp was over 120F!
The Torque reading above was directly after the 4th DCFC. You can see that the battery inlet temp (cabin temp) is at 78.8F, but the battery temp is at 122F, quite hot! I had the car turned off during the DCFC sessions, so the A/C was not running to help cool the cabin/battery. The battery cooling fan was pretty much spinning at full speed (95%?).
3) After the 4th DCFC session, I also noticed while driving on the highway that the throttle response wasn't that good. I quickly checked Torque and noticed that the motor output power is being limited to 63 kW!
(Down from 90 kW usually).
The Torque reading above shows that both the motor output power and regen have both been limited to 63 kW. I'm assuming the BMS is doing this to protect the battery since it's so hot? Later in the day when I allowed the car to sit for a few hours, the battery temp had dropped down to 100F and the motor output power was back up to 90 kW. The ambient temp by this time was down to low - mid 60s.