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Charging at a maximum of 32A with a 60A home charger [Model 3 SR+ in Canada]

Okay, so finally got to the bottom of this, and you guys were correct all along. Onboard charger is 32A. Bizarre thing is, I have been dealing with a Tesla rep for the last month and he has been telling me that it will charge at 48 amps. So I have been trying everything including replacing the Chargepoint station. After talking to you guys, I mentioned to him that I was told the onboard charger is 32 amps for the model of car he sold us. Conversation went dark for a few days and when I asked him again, he came back with a big apology and said he somehow overlooked that issue with the model 3 ST+. Bizarre to say the least. As for what I and my electrician saw, it must have been the kilometers I guess. I can’t confirm this at the moment as its my daughters car and its not here. I also asked if I could replace the onboard charger with a 48 version. He said to talk to the service department. Anyone know if thats possible? Where is the onboard charger located? Thanks again for the help, sorry for the confusion.

That's not gonna happen. Service centers are busy enough with repairs... even if frankensteining a different charger were possible, they aren't going to do it.

That said, does this really matter? Unless you're driving 24x7, it should be fast enough to fully recharge the battery every night.
 
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The charging screen always shows both amps and mph/kph for a charging rate, it doesn't matter what you have the battery level display set to.
 

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jjrandorin

Moderator, Model 3, Tesla Energy Forums
Moderator
Nov 28, 2018
14,614
18,707
Riverside Co. CA
I also asked if I could replace the onboard charger with a 48 version. He said to talk to the service department. Anyone know if thats possible? Where is the onboard charger located? Thanks again for the help, sorry for the confusion.

There is a zero percent chance that tesla would upgrade a SR+ car to higher than 32amps. The chargers in the car are 16amps each, so 2 of them = 32 amp and 3 = 48 amp (im over simplifying but there are (3) 16 amp chargers in a model 3 long range, and (2) 16amp chargers in a model 3 standard range.

Tesla is not going to add an additional one to your car. If yours stopped working, they would put in exactly what you have now. There isnt any chance that tesla "upgrades" your car in this manner.

This is certainly not the first time that a person selling cars has made a mistake about the cars feataures, tesla or otherwise. Its a pretty embarrassing mistake for the tesla person though, as they should know better than to assume something like this. You (the customer) asked because you didnt know, and would expect them to know. You jumped through a bunch of unecessary hoops because of their lack of attention to detail.

They likely know better, but just were not paying attention, and caused you a bunch of time chasing a problem that didnt exist. Thats unfortunate, it really is. Like I said, I am used to people in the car industry not really knowing their products, but its still crappy when it happens so blatantly like this.
 

jjrandorin

Moderator, Model 3, Tesla Energy Forums
Moderator
Nov 28, 2018
14,614
18,707
Riverside Co. CA
Could you provide an example of what you’re talking about? My car never displays miles per hour, on any screen, when L2 charging.

View attachment 789109

View attachment 789110


Im not sure if this is what @davewill is talking about, but my model 3 (and my wifes new model Y) displays "miles" charged like he mentions. I dont remember changing any setting to display it that way. Here is a pick I took just now after triggering charging on my wifes model Y, thats 2 ish weeks old.

Its a fairly poor iPhone pick, but look in the top left corner, that text says "40 mi/hr" along with amps and volts its charging at.
IMG_1203.JPG
 

ucmndd

Well-Known Member
Mar 10, 2016
8,533
16,644
California
Im not sure if this is what @davewill is talking about, but my model 3 (and my wifes new model Y) displays "miles" charged like he mentions. I dont remember changing any setting to display it that way. Here is a pick I took just now after triggering charging on my wifes model Y, thats 2 ish weeks old.

Its a fairly poor iPhone pick, but look in the top left corner, that text says "40 mi/hr" along with amps and volts its charging at.
View attachment 789559
Right. But if you switch your range display from miles remaining to percentage, the metrics change to the ones you see in my screenshot (charging speed in kw, total energy added in kWh). Dave is suggesting that both are always displayed, and I don't believe that to be true.
 

ucmndd

Well-Known Member
Mar 10, 2016
8,533
16,644
California
Change your energy display to range instead of percentage and it'll show the miles per hour
Yes. I know that. I’m responding to this post:
The charging screen always shows both amps and mph/kph for a charging rate, it doesn't matter what you have the battery level display set to.

Which as I’ve pointed out a couple times now, isn’t true.
 
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I have a CP-50 chargepoint charger that is hardwired and on a 60 Amp breaker. When it was first installed, our Tesla 3 would charge at 48 amps. A while ago I noticed that it was charging at 32A. It will show as 32/32A. Used to be 48/48A which is correct for a 60A breaker. Since the car is showing as a max rate of 32A now, there is some sort of handshake between home Chargepoint and the Tesla 3. Chargepoint has sent me another wall Chargepoint but it has made no difference. The Tesla 3 will charge just fine on a Tesla SC. I tried my neighbors tesla 3 on our wall charger and it also was limited to 32A. So, who’s responsibility is this? Tesla? ChargePoint? Anyone else having issues with ChargePoint home chargers?
Model 3 RWD (SR+) is limited to 32amps on level 2 chargers even if the charger can supply 48amps. The fastest you'll able to charge at a Tesla Supercharger is 175w in ideal situation. It's the car limitation Tesla gave it.

If it was the Long Range of Performance, you'll be at max 48amps on lvl 2 and max 250w on a V3 SC.
 
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