What is the lvl 2 charging speed of the Mach E? "scheduled charge did not begin" error

[josh]

I've mentioned some of my experiences with the "scheduled charging did not begin" error I've been getting after the BlueCruise update in the thread dedicated to that topic. Well, after taking the car to the dealership for the second time, I've been told that the car isn't rated for 48A, only 40A, and that I should be using the Ford-branded charger at home, not a Chargepoint. I laughed at the brand thing, but is the car only approved for 40A? I've read multiple places it is 48A, and was charging at that speed for a year before the update forced me to drop my charging amperage to 30A.

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[josh]

I should also note I started a case with Ford but it's been crickets from them regarding my multiple requests to get engineers involved. As of right note cannot get this reduced charging performance acknowledged by Ford, let alone resolved.

 

[Maquis]

It’s rated for 48A. I just checked the log on my last charge. It calculates to an average current of 45.4A. That’s using the kWh added to the battery, not the gross input to the car, so 48A would be about right. I’m using the Ford Connected Charge Station set to its max of 48A.

 

[generaltso]

Whoever wrote that service order is clueless. The car won’t draw more than it can handle.

 

[mkhuffman]

 

[josh]

So I'm wondering what the next steps are. Just keep calling Ford until I get through to a BEV specialist? I'm currently being ghosted by the customer service person who was handling my case so maybe I'll reach out to the Ford account here to see what they suggest.

 

[mkhuffman]

So I'm wondering what the next steps are. Just keep calling Ford until I get through to a BEV specialist? I'm currently being ghosted by the customer service person who was handling my case so maybe I'll reach out to the Ford account here to see what they suggest.

I would try to eliminate the EVSE as the cause, because EVSE devices do fail, and yours could be failing. Can you find another 48 Amp charger to charge your car with to see if it works or not? There may be a Ford dealership, or even another non-Ford dealership, that has a 48 Amp L2 charger for public use. You can find them using PlugShare.

https://www.plugshare.com/

Asking @Ford Motor Company for help here in the forum is a good idea also.

Edit: a Tesla destination charger would work, as some can provide 48 Amps. You will need an adapter. Hotel charging speed might not reach 48 Amps, but you could try charging at a free hotel charging spot.

 

[josh]

I can look into plugshare listings. The dealership was not able to replicate the issue because their chargers are all 20-30A per the service rep I was dealing with. My charger works great at 30A right now but the car cuts off charging if I go above that.

 

[Ming]

Whether onboard charger is 40 or 48A shouldn't be an issue. You can supply with a 60A EVSE, and the car would only take the max it's designed to handle, not 60A.

That is, the max current is the lesser of EVSE and onboard charger values.

 

[josh]

Yeah that is my understanding as well. I do not know why the techs don't have the same understanding.

 

[Maquis]

So I'm wondering what the next steps are. Just keep calling Ford until I get through to a BEV specialist? I'm currently being ghosted by the customer service person who was handling my case so maybe I'll reach out to the Ford account here to see what they suggest.

Can you find a different dealer?

 

[josh]

Yeah but this is the one that I had better experiences with. The other one is way closer to my house but has been even worse (just flat out refused to schedule the glass recall work).

 

[dmastro]

28 miles of range/hour seems awfully low for 48 amps.

 

[mkhuffman]

28 miles of range/hour seems awfully low for 48 amps.

48 Amps x 240 Volts = 11,520 W.
L2 power loss is 10%.
Power delivered to battery is 11,520 x .9 = 10,368 W.
Battery capacity is 91 kWh.
91,000 / 10,368 = 8.777 hours to fully charge the battery from zero.

Premium AWD 2022 Range is 277 miles.
Miles per hour of charge is 277 / 8.777 = 31.5598.

GT range is 270 miles, so the GT is 270 / 8.777 = 30.7622 miles per hour of charge.

Ford is trying to be conservative, because a lot of people don't get EPA range. Like me, for example. My range is around 240 miles for the way I typically drive.

 

[josh]

Here's a quick update with a healthy sanity check baked in. I just spoke with a Ford engineer on a 3-way call with the BEV team's customer service, and he confirmed that the Mach-E can charge at up to 48A. He also confirmed what we understood, in that the delivered current can be higher, and that the on-board charger would regulate that down to 48A max. I described the issue I am having in detail and he thinks there is most likely a software problem. The next step is to find a dealership that can test charging with a 48A level 2 Ford charger to confirm it is a car problem (checking the boxes, as it were). He was a bit shocked that Crossroads Ford of Apex did not have this capability because he thought it was a prerequisite for selling the car, but hopefully another dealership in the area can fully test and diagnose the Mach-E. He also asked me to give him the link to the other thread detailing this problem because he did not know about this issue. Maybe we'll see real movement on this problem now!

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