L2 charging speed recently dropped 33%

[Mach-Lee]

Yes it has been to the dealer and as noted a page ago it took 9.28 hours to charge it 66% there on a 10 Kw Ford hardwired charge. Here it is charging at home this morning trying to get it to 100%

Got to a 150 kw fast charger switched once but could not get it over 60 kw. When it hit 80% it drop to 40 Kw. Understandable must have been burning up at that 60

You realize the charge rate is going to decrease as you approach 100% right? You're at 98% so 4 kW seems right to me. Set your limit to 90% instead. Charging to 100% takes an extra hour or two because of the taper.

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[Kismit]

I’m so hoping my charge rate will improved after I get my car back.

sometimes it gets down to less than 3kw and forces me to charge daily just to be able to go back and forth to work and no additional errands.
I was contemplating purchasing a new charger as I assumed that was the issue (I’m using the supplied Ford charger) but maybe I’ll hold off

 

[tuminatr]

But you know about the drop at 80% when DCFC’ing right? That it’s normal?

Yes that's the way the car should perform.

Here is a thread with charts

https://www.macheforum.com/site/threads/mach-e-fast-charging-rate.25126/

 

[azerik]

I'm not disagreeing? I think your problem clearly needs to be reviewed and addressed. I am not sure why it hasn't been.

It's most likely a hardware problem that's easily over looked, dismissed, not reproducible and not screamed about on X, FB etc.
Mine still de-rates to 33'ish amps if I set it to 40. It still yo-yo's at 48. It's only been a little over 1.5 years, I'm sure the fix is coming soon.
Truth is Ford is doing a fantastic job of ignoring this. It helps to sell cars I suppose. But few of us are upgrading to 24+ due to these still standing issues. It doesn't behoove me to spend another $50k 2 years later to get decent L2 charge rates at home.

1/2 of these cars are manageable to those affected (crank down the amps, possibly having to buy a new EVSE to 'bandaide this), the other 1/2 have ditched the car or accepted their fate.

So rather than try to fix actual issues lets play with the radio DSP and a handful of other not asked for updates.

 

[Murse-In-Airy]

Yes that's the way the car should perform.

Nothing about this entire thread relates to DCFC. This is a level 2 charging problem. You’re assuming we’re discussing DCFC based on Shayne saying his car charges to slow.

 

[Bikespace]

ICYMI (it's a long thread, and I posted this a long time ago). My slow L2 charge issue was caused by a faulty onboard charger. This affects the L2 charging only, and for my car, only above 32 Amps. This means most Tesla destination chargers did not work. It was a herculean effort to get this taken care of. The issue could only be seen on my EVSE, and my dealer did not have a way to charge the car above 32 Amps, except by using my equipment. Ford engineering got involved, and it took a while to get resolved.

But it did get resolved. My onboard charger was replaced, and the car now L2 charges at up to 50 Amps, as it should. The key was communicating with the dealer, and providing OBDII plots, and loaning them my EVSE.

Slow DCFC charging is completely separate. At no time was my car affected by that. DCFC does NOT use the car's onboard charger. If you are getting slow charge rates below 80%, try using a Tesla SC instead.

 

[Tampamike]

Nothing about this entire thread relates to DCFC. This is a level 2 charging problem. You’re assuming we’re discussing DCFC based on Shayne saying his car charges to slow.

He brought it up, like it was an additional slow charging issue. Just trying to rein it back in.

 

[tuminatr]

It's most likely a hardware problem that's easily over looked, dismissed, not reproducible and not screamed about on X, FB etc.
Mine still de-rates to 33'ish amps if I set it to 40. It still yo-yo's at 48. It's only been a little over 1.5 years, I'm sure the fix is coming soon.
Truth is Ford is doing a fantastic job of ignoring this. It helps to sell cars I suppose. But few of us are upgrading to 24+ due to these still standing issues. It doesn't behoove me to spend another $50k 2 years later to get decent L2 charge rates at home.

1/2 of these cars are manageable to those affected (crank down the amps, possibly having to buy a new EVSE to 'bandaide this), the other 1/2 have ditched the car or accepted their fate.

So rather than try to fix actual issues lets play with the radio DSP and a handful of other not asked for updates.

I can say this Mach Lee did the firmware update for the modules that controle charging and at the same time I got a new Emporia EVSE and the problem is gone for me. YMMV though

The car is a launch GTPE so it's had a few issues. Headlight switch, HVBJB went out once, it's going in next week for the camera coax TSB and water in hatch TSB

 

[azerik]

Mine is better, but not resolved. There's a chance my charge port is actually crap and been overlooked by the dealer that looked at the car in the lot for a week once it was done..

 

[VaporTrails]

Nothing about this entire thread relates to DCFC. This is a level 2 charging problem. You’re assuming we’re discussing DCFC based on Shayne saying his car charges to slow.

I would think the top part of those curves will converge. At some point the demand is going to reduce because there are no more electrons to raise in potential. That is not a charging method issue, but battery physics issue.

 

[Murse-In-Airy]

ICYMI (it's a long thread, and I posted this a long time ago). My slow L2 charge issue was caused by a faulty onboard charger. This affects the L2 charging only, and for my car, only above 32 Amps. This means most Tesla destination chargers did not work. It was a herculean effort to get this taken care of. The issue could only be seen on my EVSE, and my dealer did not have a way to charge the car above 32 Amps, except by using my equipment. Ford engineering got involved, and it took a while to get resolved.

But it did get resolved. My onboard charger was replaced, and the car now L2 charges at up to 50 Amps, as it should. The key was communicating with the dealer, and providing OBDII plots, and loaning them my EVSE.

Slow DCFC charging is completely separate. At no time was my car affected by that. DCFC does NOT use the car's onboard charger. If you are getting slow charge rates below 80%, try using a Tesla SC instead.

Unfortunately, mine, or my wife’s I should say, started after an update. At first it would have a charge fault and fail. We did get a new charge port and a whole new SOBDM. Since then we can charge, but not above 32 amps without getting throttled down. So it’s still a problem for us despite the new SOBDM.

 

[tuminatr]

After driving 3.5 hours and depleting the batteries guess they were not warm enough. PlugShare and ford nav subscription is a never go for this vehicle. Not interested in paying for more ford software

My car came with factory navigation I did not know some of these cars it's not included. And when it's time to renew I will use my Ford pass point to do it for free

 

[tuminatr]

Here is my car charging with the new Emporia and updated module. I did a 50-90 and it held steady

 

[thenew3]

Here is my car charging with the new Emporia and updated module. I did a 50-90 and it held steady

What's the firmware level of your emporia?

 

[tuminatr]

What's the firmware level of your emporia?

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