Slow charging on AC

[Pioneer74]

First time charging. Lariat ER. I ran the battery down to 50%. I have an Emporia EV charger hardwired on a 60 amp circuit, set for 48 amps. My Emporia app is only showing a 24/25 amp draw and the charge rate is fluctuating. Garage is in the upper 60's temperature wise, just got back from a 50 mile drive about an hour and a half ago.

Now, thinking I had a problem with my Emporia EVSE, I plugged in the mobile charger on a 50 amp circuit. I can't tell how many amps are being provided, because Ford, in it's infinite wisdom, doesn't give us any information about anything, treating us like mushrooms. I did, however, notice that the time the truck estimated the charge will be done moved over 2 hours later. That tells me the mobile charger was providing less than the Emporia.

Anybody have any ideas? This lower rate is no problem now, but in the dead of winter with a 100 mile round trip commute in the snowy cold of Southern Michigan, and with a 12 hour cold soak exposed to the elements while I'm working, I don't think this charge rate will recover enough range in my 7 hour off-peak window.

Sponsored

 

[MickeyAO]

I would say to set up Torque to watch the current levels. Also, check what the PWM from the truck is saying. This will help you determine what the problem is.

 

[Pioneer74]

I would say to set up Torque to watch the current levels. Also, check what the PWM from the truck is saying. This will help you determine what the problem is.

Do you have any links or sites you would recommend to learn about the Torque app? @FlasherZ has a thread on here with some links, but some links are dead. I have Torque Pro installed, imported the Mach-E PID's, but I can't figure out how to set the dashboard up.

 

[Saul Goodman]

Amps x volts = watts
Reduce the amps by 33% from 48 to 32 of the mobile charger and your watts go down. Funny how math works.

 

[Pioneer74]

Amps x volts = watts
Reduce the amps by 33% from 48 to 32 of the mobile charger and your watts go down. Funny how math works.

What does any of that have to do with my slow charging?

 

[gorwell]

Not your same situation, but Same charger and today was the first day I decided to charge to 100%. But, i noticed it kept decreasing in speed as it got higher into the 90s.

Never seen this before, I've charged my Ioniq 5 to 100% probably like 10 times since I've owned it and it never slowed down.

(I plugged the lightning in just to top it off after my Ioniq 5 charged during the night to 70%)

I don't think I ever heard anyone say ford limits l2 speeds.... But never had this issue with charger before, so maybe it does... Will see what happens next time I go to 100 for either car.

 

[BennyTheBeaver]

Based on your chart is seems your charging is oscillating between 16A and 30A. The chart seems like thermal issues, it ramps up, overheats, and dips back down. I'm assuming that you are using 240v, obviously if you are down towards 208v that would have an impact...

 

[Pioneer74]

Based on your chart is seems your charging is oscillating between 16A and 30A. The chart seems like thermal issues, it ramps up, overheats, and dips back down. I'm assuming that you are using 240v, obviously if you are down towards 208v that would have an impact...

My voltage reads 238V at the EVSE terminals. Same as the 14-50 outlet.

 

[petemill]

Who's the Star Trek fan?

 

[Pioneer74]

Not your same situation, but Same charger and today was the first day I decided to charge to 100%. But, i noticed it kept decreasing in speed as it got higher into the 90s.

Never seen this before, I've charged my Ioniq 5 to 100% probably like 10 times since I've owned it and it never slowed down.

(I plugged the lightning in just to top it off after my Ioniq 5 charged during the night to 70%)

I don't think I ever heard anyone say ford limits l2 speeds.... But never had this issue with charger before, so maybe it does... Will see what happens next time I go to 100 for either car.

What was your trucks battery percentage when you started charging and reading ~11kw?

 

[Pioneer74]

Who's the Star Trek fan?

Good eye.

 

[adoublee]

First time charging. Lariat ER. I ran the battery down to 50%. I have an Emporia EV charger hardwired on a 60 amp circuit, set for 48 amps. My Emporia app is only showing a 24/25 amp draw and the charge rate is fluctuating. Garage is in the upper 60's temperature wise, just got back from a 50 mile drive about an hour and a half ago.

Now, thinking I had a problem with my Emporia EVSE, I plugged in the mobile charger on a 50 amp circuit. I can't tell how many amps are being provided, because Ford, in it's infinite wisdom, doesn't give us any information about anything, treating us like mushrooms. I did, however, notice that the time the truck estimated the charge will be done moved over 2 hours later. That tells me the mobile charger was providing less than the Emporia.

Anybody have any ideas? This lower rate is no problem now, but in the dead of winter with a 100 mile round trip commute in the snowy cold of Southern Michigan, and with a 12 hour cold soak exposed to the elements while I'm working, I don't think this charge rate will recover enough range in my 7 hour off-peak window.

I believe I heard the mobile charger is to deliver 32A if plugged in anywhere but the bed outlet, and was set up to know when plugged into the bed outlet and derate itself to 30A to stay within the 240V outlet rating. That would be 7.6kW which does appear higher than the peak of what your graphs shows with the Emporia, though the voltage may drop a bit more under load and the Emporia power monitoring could have a more imprecise accuracy than one might expect. Who knows exactly what the Ford time to charge calculator is pulling from with a power profile like that - that ping ponging is definitely not natural. I don't think it is expected behavior from what the vehicle would be requesting unless broken, which makes me think it is an issue with the EVSE.

My next stop would probably be a public L2 AC EVSE on a network with that provides a power chart (I know Chargepoint does). It will be hard to find something over 32A but you could seek it out on Plugshare (won't be Chargepoint if you do find one).

 

[MickeyAO]

Do you have any links or sites you would recommend to learn about the Torque app? @FlasherZ has a thread on here with some links, but some links are dead. I have Torque Pro installed, imported the Mach-E PID's, but I can't figure out how to set the dashboard up.

Do you have an OBDII adaptor to connect to the vehicle? If so, go to Realtime Information and long press on the screen to add a sensor. You can then select the type of display and then the information to display.

If you have an extended-range battery, the OBD will only show half of the current if over 48 A.

 

[p52Ranch]

Not your same situation, but Same charger and today was the first day I decided to charge to 100%. But, i noticed it kept decreasing in speed as it got higher into the 90s.

Never seen this before, I've charged my Ioniq 5 to 100% probably like 10 times since I've owned it and it never slowed down.

(I plugged the lightning in just to top it off after my Ioniq 5 charged during the night to 70%)

I don't think I ever heard anyone say ford limits l2 speeds.... But never had this issue with charger before, so maybe it does... Will see what happens next time I go to 100 for either car.

I see the same ramp down after 90% in my SR on L2 48 amp charging. By the time it’s near 100%, it has ramped down to 2 KWh (less than 10 amps).

 

[p52Ranch]

First time charging. Lariat ER. I ran the battery down to 50%. I have an Emporia EV charger hardwired on a 60 amp circuit, set for 48 amps. My Emporia app is only showing a 24/25 amp draw and the charge rate is fluctuating. Garage is in the upper 60's temperature wise, just got back from a 50 mile drive about an hour and a half ago.

Now, thinking I had a problem with my Emporia EVSE, I plugged in the mobile charger on a 50 amp circuit. I can't tell how many amps are being provided, because Ford, in it's infinite wisdom, doesn't give us any information about anything, treating us like mushrooms. I did, however, notice that the time the truck estimated the charge will be done moved over 2 hours later. That tells me the mobile charger was providing less than the Emporia.

Anybody have any ideas? This lower rate is no problem now, but in the dead of winter with a 100 mile round trip commute in the snowy cold of Southern Michigan, and with a 12 hour cold soak exposed to the elements while I'm working, I don't think this charge rate will recover enough range in my 7 hour off-peak window.

Doesn’t the ER split the L2 charging between two inverters instead of the one on the SR? If so is it possible that one of the inverters is not working and that is why your Lightning is only charging at half speed?

Sponsored