70% SoC recharged back to the ‘21 ER pack in ~38 mins. That is faster than before, no?
I think it's closer to 40 minutes for 10-80% in my experience. Yes, slightly faster than the original software. That update came sometime in mid 2023.
I think something to note is my car does have 28k miles on it and I've had 2 new cells so my pack isn't a prime example
I think if we see anything maybe the taper to 80kw might stay at 90 instead. These high peak speeds I don't see these coming to our cars, but there most likely is some room on the table to improve the 60 to 80% time
Seeing these 70% recharges in 38ish minutes seems like a big deal. I wonder if starting at 1-2% vs 10% has anything to do with it. @Nolanbro have you tried at 10% to see if there’s a difference?
Yes. I've noticed sweet spot is around 15%. If you pull up totally dead it definitely pulls back charging speeds quicker. It seems the area that gets affected is the ~95 kw step. If you plug in dead it seems so sit there for 5 mins vs 10 if you start closer to 20%. The other thing to remember is mach e doesn't request a kW output its an amperage request, so when you plug in dead vs 10% there's an increase in voltage which will increase kW output. Tecinally I believe mach e will take ~430 amps up to 46% which would be around 10-15 kW more than it would at 0%
That's normal for mach e. I believe it's around 130 seconds it does peak speeds. I'd be interested to see when you dropped under 100kW. Also remember even if it's warm out the battery heater usually kicks on until batt temp reaches 95F. So it's adding about 5-7 kw to what's actually going into the packJust came back from a 800 mile road trip. My 21 Premium Ex hit 164kW at an EA 350 station in the last 90 minutes. 2 minutes later it sognificantly dropped
Charging curve? Hard to tell as various stations give various kW at similar SOC. Updates: I am sitting at 6.14.0
Both you and @Angelnx1985 were on 150kW units which limits the amperage down to like 350A which may speed things up over a dispenser capable of 500A. Hopefully that’s not the case and we get this reduced time regardless of equipment.
Something to note is most of the gen3 signet EA units are 500amps even on the 150s. I've been able to pull about 160 out of them. It's the older ABB units that the 150s are really 125s for us due to the 350amp limitation. Using one of those adds about 3 to 4 minutes of charging time. I'd advise anyone with 24 mache to use dispensers that can output 500 amps as they will get much faster speeds for longer.
So what's interesting with mach-e is because it's not state of charge based, in theory as long as it can take the full 450amps and be under max voltage, your time to add x amount of % back (ending under 80%) should actually be the same. I'd be interested if you graph it starting at 20% and 10% to see how different the curve is. If you do it in excel you can just drag the 20% curve to match the 10% one and make a chart to see the difference. I've noticed usually it charges slightly faster the higher the SOC due to voltage being greater (volts x amps =kW)I can confirm that even starting at 30% SoC on 350kw unit, I got as high as 164kw. I will be making another video testing from 10-80% on a 350kw station, but will probably use EVgo this time. The gold standard for DC fast charging is 10-80% imo so another video would make sense
10-80% on a 350kW station would for sure answer a lot of questions! Your charging session going 2-100% was really important but it’s not clear anymore if that experience gets directly replicated. That is, is 2% to 72% the same as 10% to 80%?I can confirm that even starting at 30% SoC on 350kw unit, I got as high as 164kw. I will be making another video testing from 10-80% on a 350kw station, but will probably use EVgo this time. The gold standard for DC fast charging is 10-80% imo so another video would make sense
