L2 charging speed recently dropped 33%

[kennethjk]

I'm confused about this charge throttling/speed reduction. I've read where some have it and some don't. I've read it might have to do with a defective sensor in the chart port? I've read that there was an update sent out OTA which lowered the charge speeds?

Back in June on the second and fifth pages of this long thread, I posted screenshots of my charging graphs with no fluctuations nor reduction in charing speed. I was told that I possibly didn't receive the update yet. Here we are three months later and I still don't see throttling nor reduction in speed during charging. I do all my own updates with FDRS.

I charge in my garage which is temperature controlled to never go above 80˚ in the summer, below 65˚ in the winter. I have my Emporia charger set to only charge on excess solar but every once in a while I need to charge from the grid. The last time I had to do this was on the 19th of this month. Below are graphs of my 3 hr 55 min charging session. Each graph is a 40 minute period. I have my charger set to the maximum 48A and on that setting, the car always charges a solid 43 amps. I believe I was around 65% SOC when I started but don't remember. The car is set to charge to 100% so as the battery nears fully charged, the speed starts to drop which is normal but I never get a fluctuation.

09/19/23 11:35AM - 3:25PM

I know the answer to this

solar electricity is not as powerful as regular electricity. ?

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[Murse-In-Airy]

@markboris my GTPE has no issues at 40amps. My wife’s AWD 4x has already had a charge port replaced and still won’t fully charge. I think this is the second HVBJB where some of us may never see the problem. Others of us are going to suffer.

 

[mkhuffman]

I'm confused about this charge throttling/speed reduction. I've read where some have it and some don't. I've read it might have to do with a defective sensor in the chart port? I've read that there was an update sent out OTA which lowered the charge speeds?

Back in June on the second and fifth pages of this long thread, I posted screenshots of my charging graphs with no fluctuations nor reduction in charing speed. I was told that I possibly didn't receive the update yet. Here we are three months later and I still don't see throttling nor reduction in speed during charging. I do all my own updates with FDRS.

I charge in my garage which is temperature controlled to never go above 80˚ in the summer, below 65˚ in the winter. I have my Emporia charger set to only charge on excess solar but every once in a while I need to charge from the grid. The last time I had to do this was on the 19th of this month. Below are graphs of my 3 hr 55 min charging session. Each graph is a 40 minute period. I have my charger set to the maximum 48A and on that setting, the car always charges a solid 43 amps. I believe I was around 65% SOC when I started but don't remember. The car is set to charge to 100% so as the battery nears fully charged, the speed starts to drop which is normal but I never get a fluctuation.

09/19/23 11:35AM - 3:25PM

Maybe you had some throttling starting around 2:30 and getting worse around 2:40 PM?

 

[markboris]

I know the answer to this

solar electricity is not as powerful as regular electricity. ?

I can't tell if you are joking (emoji?) but I was using the grid to charge during this session, solar was not involved. I needed to have the car fully charged by 4:00 pm and I knew excess solar wasn't going to do it since I had both AC's running in the house.

 

[kennethjk]

I can't tell if you are joking (emoji?) but I was using the grid to charge during this session, solar was not involved. I needed to have the car fully charged by 4:00 pm and I knew excess solar wasn't going to do it since I had both AC's running in the house.

Yes just kidding around

 

[markboris]

Yes just kidding around

Sorry, sometimes I never know. ?

 

[kennethjk]

Sorry, sometimes I never know. ?

I have to brush up on my emoji selection

 

[markboris]

Maybe you had some throttling starting around 2:30 and getting worse around 2:40 PM?

Mike, if that slight fluctuation of 1-2 amps at 2:30 and 2:40 is what everyone is talking about, then I guess I have it also. I was thinking it was possibly grid voltage fluctuation since it was mid afternoon and everyone is using their AC's since it was 104˚ that day. The fluctuation I have seen in some of the graphs on this thread is a very constant up and down and much much more of a difference than 1-2 amps. Would it be better if I posted that same charge session in kWh? Or is there any other test I can do like maybe from 10% SOC to 100%?

 

[Fixbear]

I know the answer to this

solar electricity is not as powerful as regular electricity. ?

The solar is square wave and very consistent voltage due to a inverter. Much more stable that grid voltages. I once had to install a 50kw line tamer for a printing company's pre-press operation just for that reason. I also had to install a 40hp ABB motor starter as a method to fix Niagra Mohawk's power supply to a lumber dehumidification drying kiln. NIMO supplied to unit.

 

[Fixbear]

It could also be that when the batteries approach the top the rate will slow down.

 

[kdryden99]

The fluctuations we are/ were experiencing are closer to 8 amp fluctuations not 1 or 2 amps. Example if were at 40 it'll drop to 33. If at 32 its much less like 1 or 2 amps. At 48 it would just not charge.

 

[Maquis]

The fluctuations we are/ were experiencing are closer to 8 amp fluctuations not 1 or 2 amps. Example if were at 40 it'll drop to 33. If at 32 its much less like 1 or 2 amps. At 48 it would just not charge.

My EVSE is set to 48A. A couple times recently, it’s charged fine - 10 KW shown in FordPass. When the throttling kicks in, it drops to 7 KW, or about 34-35A input. I’ve never had it not charge at all.

 

[Space_Pony]

I've never seen any problems like that. Are these problems mostly on the 21 and 22 models. Fordpass shows a constant 10 kw and Autel shows 11.0-11.2 and 46.5 amps with no fluctuations in the chart.

 

[kdryden99]

I've never seen any problems like that. Are these problems mostly on the 21 and 22 models. Fordpass shows a constant 10 kw and Autel shows 11.0-11.2 and 46.5 amps with no fluctuations in the chart.

Yours seems to be fine.

My EVSE is set to 48A. A couple times recently, it’s charged fine - 10 KW shown in FordPass. When the throttling kicks in, it drops to 7 KW, or about 34-35A input. I’ve never had it not charge at all.

10 Kw though is not 48 amps. When I would set the current to 44 amps it would bounce not cut off. 48 amps is 11-11.5Kw so it sounds like it is already throttled. You might be observing the 34-35 amps throttle because it's set to 48. If you leave it 40 amps I'll bet you see it bounce after ten minutes. This would indicate the same problem as I had.

 

[kdryden99]

Mike, if that slight fluctuation of 1-2 amps at 2:30 and 2:40 is what everyone is talking about, then I guess I have it also. I was thinking it was possibly grid voltage fluctuation since it was mid afternoon and everyone is using their AC's since it was 104˚ that day. The fluctuation I have seen in some of the graphs on this thread is a very constant up and down and much much more of a difference than 1-2 amps. Would it be better if I posted that same charge session in kWh? Or is there any other test I can do like maybe from 10% SOC to 100%?

From what I saw it is regardless of SOC and more time and current dependent.

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