L2 charging speed recently dropped 33%

[kennethjk]

If I charge straight at 32 I have no issues.

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[kdryden99]

You sure about that?
Mine: https://www.macheforum.com/site/threads/l2-38-48-amp-charging-flux.27831/ May 3rd
Another: https://www.macheforum.com/site/threads/my-charging-waveform-has-changed-what’s-up-with-this.28096/ May 15th
Along with several others that didn't have a way to see it in a graph but realized "it takes longer to charge".
Great, your port was replaced and it still does it and if you charge at 48 it just quits. Those of us who could turned it down to 40 or 32amps, still struggling with it. Yours yoyoing at 10 minutes seems to be an edge case.

Again I think you're not understanding. At 48 it would cut so I had to lower to 40 just to get it to charge and I would get the up and down. You need to get the harness with the temp sensor replaced. You can clearly see that in your graph the up and down starts after 10 minutes. It's the exact same issue. Your port and harness need to be replaced.

 

[kdryden99]

If I charge straight at 32 I have no issues.

Correct because the car is being told to throttle to 32 if you're at 40

 

[azerik]

Again I think you're not understanding. At 48 it would cut so I had to lower to 40 just to get it to charge and I would get the up and down. You need to get the harness with the temp sensor replaced. You can clearly see that in your graph the up and down starts after 10 minutes. It's the exact same issue. Your port and harness need to be replaced.

Mine and several thousand others.
I can charge at 48, then it starts derating to 28. I gave up trying to derate my charger to make the car happy. Let it burn I say. Due to not getting any codes. I'm trying to figure out if I just leave the car with the dealer while I head to the east coast for 2 week. Laundry list of items.

 

[kdryden99]

The code wss P0E5F in the SOBDM

 

[kennethjk]

Correct because the car is being told to throttle to 32 if you're at 40

Just another BS move by Ford, in reality we can’t charge at a speed they say we can. They may as well say max charge at 19 kw and then throttle us back to 7, most people won’t know anyway.

 

[kennethjk]

The code wss P0E5F in the SOBDM

If you received that code you blew by the max temp. Now that my car is throttled I don’t get near max temp and therefore no code and therefore no new parts And Ford EV team told my dealer throttling is normal and all ok.

 

[kdryden99]

Mine and several thousand others. Which you're is replaced and still an issue no?

I can charge at 48, then it starts derating to 28. I gave up trying to derate my charger to make the car happy. Let it burn I say.

No it's not doing the same thing. I strongly believe that the update was put in place to throttle the charge slightly and not give us the up and down issue we were having. I can charge at 48 amps now yes it'll go down to 44 but at least it's not stopping.

Here's what I believe happened. Before the update L2 charging ignored the temp sensor on the harness and was able to charge at max value. Once the Fast charging update was put in place the L2 charging no longer ignored the harness temp sensor. The temp sensor being defective, the update now throttled the L2 charging to an extreme level. It may be possible that charging at 48 amps all the time may have even broken the temp sensor but was ignored during L2 so we didn't notice until the DC charging curve update. I will know for sure after I fast charge since the temp sensor may also have been affecting my DC charging curve as well.

 

[kdryden99]

If you received that code you blew by the max temp. Now that my car is throttled I don’t get near max temp and therefore no code and therefore no new parts And Ford EV team told my dealer throttling is normal and all ok.

How did it get throttled? Can you try charging at 48 amps?

 

[kennethjk]

How did it get throttled? Can you try charging at 48 amps?

Ford is throttling it.

my juicebox is a 40 amp And normally charges at roughly 9 kw. If I leave it at 40 amp it jumps up and down from 9-6 kw after about 45 minutes.

if I set the juicebox to 32 amp it charges at a steady 7 kw. All numbers are approx.

 

[azerik]

Your actual amperage can vary based on the grid voltage. I don't believe the car can derate to just a few amps less. I believe it requests a 'square' voltage from the charger. My grid is a little low and depending on if it's near 240 I'll get slightly more than if it's closer to 220.
Mine has always supplied 44 if 48 is requested, 28 if 32 if requested. I'd take a couple amp lower for a steady charge. I see that tiny flux all the time.

 

[kennethjk]

I always see tiny stuff also but what I have now is not tiny and before the software update I never had big jumps

 

[mkhuffman]

Mine takes around two hours before it starts throttling. It seems like if it starts throttling after 10 minutes, it is a different issue. Maybe the 10 minute throttling cases are defects, while the ones that take longer are normal and throttling is happening due to increased sensitivity introduced in the software.

 

[kdryden99]

Ford is throttling it.

my juicebox is a 40 amp And normally charges at roughly 9 kw. If I leave it at 40 amp it jumps up and down from 9-6 kw after about 45 minutes.

if I set the juicebox to 32 amp it charges at a steady 7 kw. All numbers are approx.

Ya that's how mine was acting but I was able to get the code to show up because it threw the code when I charged at 48 amps. At 48 amps it doesn't throttle, it shuts down. If you could find someone with a 48 amp you might get it to throw the code. It takes only a couple of seconds at 48.

 

[kdryden99]

Mine takes around two hours before it starts throttling. It seems like if it starts throttling after 10 minutes, it is a different issue. Maybe the 10 minute throttling cases are defects, while the ones that take longer are normal and throttling is happening due to increased sensitivity introduced in the software.

This sounds right. I'll know more Monday I am driving to Ottawa (2.5 hours away) I will need to fast charge there and will charge overnight when I get back, starting at roughly 30%.

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