Why did my public L2 session stop at 90%?

[Mirak]

I plugged into a ChargePoint L2 this morning during an out&back daytrip of about 150mi both ways. I was at university with business there, so staying plugged in all day worked just fine for me. I had hoped to charge back to 100% for the trip home.

But the session ended at 90%. Did I have a setting wrong with my car, or is this set by the station? I have my home charge settings capped at 90% but I didn’t think that applied to public.

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[Maquis]

I plugged into a ChargePoint L2 this morning during an out&back daytrip of about 150mi both ways. I was at university with business there, so staying plugged in all day worked just fine for me. I had hoped to charge back to 100% for the trip home.

But the session ended at 90%. Did I have a setting wrong with my car, or is this set by the station? I have my home charge settings capped at 90% but I didn’t think that applied to public.

Interesting. It’s not possible to set a limit for DC charging.
But Lightnings will stop at 90% (at least they used to) unless you set a one-time charge limit (not available on Mach-E).
I wonder if Ford is rolling this out to Mach-Es now?? If so, is it intentional?

 

[Skip Towne]

I believe some smart public charge stations (like Chargepoint), especially free ones, can be configured to stop after a set period of time based on the site owner's preference. So perhaps it wasn't the 90% threshold that stopped the charge it was getting to the 4 hour (or whatever) limit.

 

[Kamuelaflyer]

I believe some smart public charge stations (like Chargepoint), especially free ones, can be configured to stop after a set period of time based on the site owner's preference. So perhaps it wasn't the 90% threshold that stopped the charge it was getting to the 4 hour (or whatever) limit.

This is probably the most likely scenario. Our local Target (CP), for example, shuts you off at 2 hours which is the free charge limit. The airport (also CP) shuts you down at 4 hours.

 

[Mirak]

I plugged in at 7:15am. It shut down at 1:32pm at 90%. FordPass showed it as a “Charge Station Fault.”

 

[Kamuelaflyer]

I plugged in at 7:15am. It shut down at 1:32pm at 90%. FordPass showed it as a “Charge Station Fault.”

Well that would be your answer then.

 

[Gimme_my_MME]

Well that would be your answer then.

 

[Pioneer74]

Well that would be your answer then.

Ever since the last OTA update, my Mach-E has shown a "charge station fault" when charging is finished. It reaches my 90% limit just fine. It does it when using my Emporia, my FCSP and the mobile charger.

I don't think the "charge station fault" message is necessary the problem.

 

[ChasingCoral]

I plugged into a ChargePoint L2 this morning during an out&back daytrip of about 150mi both ways. I was at university with business there, so staying plugged in all day worked just fine for me. I had hoped to charge back to 100% for the trip home.

But the session ended at 90%. Did I have a setting wrong with my car, or is this set by the station? I have my home charge settings capped at 90% but I didn’t think that applied to public.

Some DCFC units can be programmed for a maximum %SOC they will deliver to keep people from hogging them. I've seen that on an older ABB at a car dealership but have never seen it on a ChargePoint myself. Since I rarely charge to over 90% on DCFC (no one should do this unless they really need the extra juice), I really wouldn't see this often.

 

[Mirak]

Some DCFC units can be programmed for a maximum %SOC they will deliver to keep people from hogging them. I've seen that on an older ABB at a car dealership but have never seen it on a ChargePoint myself. Since I rarely charge to over 90% on DCFC (no one should do this unless they really need the extra juice), I really wouldn't see this often.

Yeah. I’m pretty sure that’s what happened. The “charging station fault” message is bogus. That is just Ford’s interpretation of a charge session ending early.

At first I suspected my home charging 90% cap might have bled into a public station, but I don’t think that’s it, either.

I think that particular ChargePoint was programmed to stop at 90%. It was also gonna charge me an additional $4 if I stayed parked there for more than 1hr after cutoff.

I used another ChargePoint last night and it took me back to 100%.

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