Road tripping in the MG4

Best charge speed I have seen is 140kw on a Tesla charger, only up to 50% after this it drops off to 70kw until I reached about 80% then speed drops off again. No preheating of the battery, ambient temp in double digits.
Yes, the highest charge speed is only realised under 50%. There's a charge curve graphic posted earlier from memory.

With my NMC battery "77" ER the max is 144kW, a "64" LR tops off at 140kW and the LFP "51" SR only does 88kW.

I regularly see 144kW on Tesla and RAA (Kempower hardware) chargers when charging from a low SoC. Never with a Tritium hardware charger.

Past 80% charging is really slow. You really shouldn't use a DCFC past that unless you really need the extra few percent to be sure of reaching the next charger.

You're just wasting time and potentially holding up other people waiting.
 
Last edited:
Yes, the highest charge speed is only realised under 50%. There's a charge curve graphic posted earlier from memory.

With my NMC battery "77" ER the max is 144kW, a "64" LR tops off at 140kW and the LFP "51" SR only does 88kW.

I regularly see 144kW on Tesla and RAA (Kempower hardware) chargers when charging from a slow SoC. Never with a Tritium hardware charger.
Last year i used Tesla as much as possible and i did see well over 135kW speeds, highest ever was 143kW.
However, all the charging curves point that if i start charging at ANY % between 5 and 40 i should get 144kW speeds. Let's even say 130kW. But so far i read 2 comments saying that is only if i start from 'low' SoC. That goes against what the charging curves say. If i understand it correctly.

Is there a charging curve in case you start charging from more than 0%? Say a curve for every 5% SoC?
Past 80% charging is really slow. You really shouldn't use a DCFC past that unless you really need the extra few percent to be sure of reaching the next charger.
You're just wasting time and potentially holding up other people waiting.
Fully agree on that, sometimes i do have to charge to 100% even in EV unfriendly countries. But usually between 75% and 85% the speed is still acceptable.
 
At the very least, i canceled my subscription with Ionity, i take it it is maybe a nice backup, but i should not expect the normal speeds from their chargers. I am curious as to why, but will try to re-test Tesla. Are the majority of Fastned chargers just a reskinned Kempower charger?
 
Last year i used Tesla as much as possible and i did see well over 135kW speeds, highest ever was 143kW.
However, all the charging curves point that if i start charging at ANY % between 5 and 40 i should get 144kW speeds. Let's even say 130kW. But so far i read 2 comments saying that is only if i start from 'low' SoC. That goes against what the charging curves say. If i understand it correctly.
In my experience if you start below 40% you will get to near 140kW as in my experience it takes a minute or so to get to full power (which if you've started above about 40% it will hit the 50% mark by the time it could hit full power but now won't as it is on the downward part of the curve). Make sense? I think I'm explaining it right!

So yeah, anywhere from 5-40 start will hit 140kW. That being said, it doesn't take very long at that rate to get the SoC to 50%!


At 40% SoC it only takes 4 minutes to get to 50%.
Is there a charging curve in case you start charging from more than 0%? Say a curve for every 5% SoC?
The curve applies irrespective of when you start with the proviso that it takes a minute or so to build up to "full" speed.
Fully agree on that, sometimes i do have to charge to 100% even in EV unfriendly countries. But usually between 75% and 85% the speed is still acceptable.
Yep. I often don't get back from whatever I've pottered off to do whilst charging before it's hit the 80% mark!
But if needing that extra little bit from 85+ it does get painful ;)
 
Are the majority of Fastned chargers just a reskinned Kempower charger?
I don't know about them other than in Australia where they are used by one of our State's motoring groups (The RAA) extensively and they're really good!

Unfortunately the Tritium chargers have proven to be a disaster:(
 
Understood. Then my expectations on the charge curve are correct. From other comments it sounded that starting a charge at anything higher than 10% would not hit the max according to the charge curve.

I will try Tesla and hit the penalty of them rarely being on the highways (rest areas).
 

Are you enjoying your MG4?

  • Yes

    Votes: 937 77.6%
  • I'm in the middle

    Votes: 178 14.7%
  • No

    Votes: 92 7.6%
Support us by becoming a Premium Member

Latest MG EVs video

MG ZS EV Retrospective & First Look at the MG S5 EV | Live Q&A with Owners & MGEVs Panel
Subscribe to our YouTube channel
Back
Top Bottom