L2 charging speed recently dropped 33%

[phil]

It seems there may be a design issue specifically with older JuiceBox white J1772 connectors because both examples had loose sockets.

FWIW, my JuiceBox Pro 40 is from 2016 with a white J1772 connector, and has given me no trouble for the past 8 years.

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[Shayne]

My Emporia was new last year. First couple of months when I got the car, it would charge steady at 48 amps, no yo yo. Then after a software update on the MME it no longer would charge at 48 amps. After spending a good deal of time troubleshooting, I figured out 43 amps was max it would charge at. It would start to yo yo after a few minutes.

Tested the same Emporia on several other vehicles including a loaner 2023 MME, and a 2023 F150 lightning, 2023 BMW i5. All will charge at 48amps and stay constant at 48amps for as long as I keep it plugged in (or the car gets to high 90% SOC).

Emporia even replaced my EVSE with another brand new one with a new J1772 plug design and new firmware. Have exactly the same issue with my MME.

I have also tested my MME on the Ford pro 80 amp charger. It also will not charge. So based on my testing, in my case, the issue is on the MME and not on the EVSE.

Hi there! Would you send us a private message with your VIN and dealership name and location? I’d like to look into this concern on my end.  

NOT! 55 PAGES and NOTHING! Kind of says it all. No help no transparency. Great manufacturer which has made the value of our cars just keep going up and just keeps doubling down on manufacturing EV's. The big decisions by Ford is the only real transparency I have seen and it appears to be profit over owners. HVJB and now this. Take a chance with the view you are purchasing from a reputable manufacture and learn otherwise. It is a fool me once scenario.

 

[Murse-In-Airy]

Please do post back here when you get that project done. I’ll be curious to know if the new charger helps.

 

[tuminatr]

Here is an update. I installed a new 48a Emporia charger (it's currently plugged in NEMA 14-50 and set to 40A) that performs like the old 40a Juicebox Pro. I'm still happy to have decided to get a new one the cord seems more flexible and the WIFI was broken on my juice box. Tomorrow I will try to use my OBD2 scanner to show what going into the car but it appears 40a EVSE will show 8kw when charging. In my opinion, my car does not have a problem like some others have described. Based on my results the charger is unlikely to be the problem

I do want to point out that it's 11:24pm. The charger is brand new to be and it's been plugged in for all of 5 minutes. I will do more testing but I haven't gotten to it yet. My point is it appears loose connectors or not = the same result.

I suspect that both chargers are working normally and Fordpass shows 8kw with a 40a charger,

 

[Shayne]

Here is an update. I installed a new 48a Emporia charger (it's currently plugged in NEMA 14-50 and set to 40A) that performs like the old 40a Juicebox Pro. I'm still happy to have decided to get a new one the cord seems more flexible and the WIFI was broken on my juice box. Tomorrow I will try to use my OBD2 scanner to show what going into the car but it appears 40a EVSE will show 8kw when charging. I think this is normal

Hope you solve your problem by throwing money at it. Your picture however does not show much. No distance added. Mine always starts at 8.X and then quickly derates. It is not that the charger can not deliver 40 amps it is the car does not want it.

 

[Space_Pony]

Here is an update. I installed a new 48a Emporia charger (it's currently plugged in NEMA 14-50 and set to 40A) that performs like the old 40a Juicebox Pro. I'm still happy to have decided to get a new one the cord seems more flexible and the WIFI was broken on my juice box. Tomorrow I will try to use my OBD2 scanner to show what going into the car but it appears 40a EVSE will show 8kw when charging. I think this is normal

Doesn't your Emporia have an app that shows the electricity being output by your evse? It will not be the same as what FP shows due to transmission loss. I have an Autel with an app that provides much more charging information than FP provides. I assume Emporia does also.

 

[Shayne]

Doesn't your Emporia have an app that shows the electricity being output by your evse? It will not be the same as what FP shows due to transmission loss. I have an Autel with an app that provides much more charging information than FP provides. I assume Emporia does also.

About $2.50 to run into the city and back and about $10.00 to fill up for 400 kms (250 mi). Filling it up has not really hurt the electrical bill here it is dirt cheap as a commuter. 5 day work week 100 miles a day would be $20.00 a week. Get a cheap one and start saving on gas. Quit smoking today

 

[Space_Pony]

About $2.50 to run into the city and back and about $10.00 to fill up for 400 kms (250 mi). Filling it up has not really hurt the electrical bill here it is dirt cheap as a commuter. 5 day work week 100 miles a day would be $20.00 a week. Get a cheap one and start saving on gas. Quit smoking today

Yes, using an EV in Canada is a wise decision when you look at the price of your gasoline. Of course most of that are probably taxes. I'm sure they will find a way to add taxes to make it less attractive.

 

[Tampamike]

Just installed a ChargePoint Home Flex. Haven’t done a full charge yet but this was the other night. Charger is hard-wired on a 60 amp breaker with charge set to maximum of 48 amps. The session started out at what seemed like the correct maximum of 11.5 kw. Stayed there for maybe 20 minutes then started to bounce up and down from about 8.5 to 10ish. Then later on it rebounded to 11 for most of the last portion of the charge until it dropped off at the last, finishing 1%.

 

[thenew3]

Here is an update. I installed a new 48a Emporia charger (it's currently plugged in NEMA 14-50 and set to 40A) that performs like the old 40a Juicebox Pro. I'm still happy to have decided to get a new one the cord seems more flexible and the WIFI was broken on my juice box. Tomorrow I will try to use my OBD2 scanner to show what going into the car but it appears 40a EVSE will show 8kw when charging. I think this is normal

If you look in the emporia app, it should show you near real time output in 1 second intervals. You can see exactly what it's sending to the car. Some of that may be loss to other use, but majority should be going into the battery. The app also shows how many amps the car is pulling.

In my experience, if you set the emporia to 40 amps and the fordpass app is showing 8kw, then the emporia should show around 9.2-9.6 kw, using carscanner you should see about 9.2-9.4 kw going into the battery.

 

[tuminatr]

Here are the update from my OBD2 and Emporia app. There's a small difference in speed due to the loose cable but not a huge difference in my case. YMMV on this I don't think my cable was very bad.


From the Emporia app

This is the new Emporia EVSE

This is the old Juicebox EVSE

 

[Shayne]

Well we have a step in the right direction. My service guys FINALLY plugged it into their 48 amp Ford hardwired L2 charger. Started at 8.3 KW and within a minutes it was charging at 6.3 KW (not even 32 amps). Not close to 10 KW at 48 amp like my sales agreement states. Software is on hold and no fix or acknowledgement from @Ford Motor Company to date but still a small step after 14 months. Oh guess what not the charger DUH!

 

[azerik]

after 3 hours of charging mine dropps off still.In it's defense it was 106 in the garage at the time. I only charge at 32amps due to the heat and obnoxious fan.

 

[Shayne]

after 3 hours of charging mine dropps off still.In it's defense it was 106 in the garage at the time. I only charge at 32amps due to the heat and obnoxious fan.

Yep we have cars that home charge like crap. Mine charges slow at -5 F. No defense for that

 

[Shayne]

Well I have long term results from the dealers. Different chargers same result. maybe it is that all chargers are bad and the car is perfect? Maybe I should buy a bunch of chargers and test? After a year pushing for it to be acknowledged we are hoping for a fix. ?‍

The title from the OP L2 charging speed recently dropped 33% posted on June 2023 is still pretty accurate. OTA Update 6.6. That's a lot of 6's just not 6 hours like it should be; that is 9 and 3 hours longer.

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