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Tesla Model 3 charging slow.
- Thread starter beammd
- Start date
AS9.9.
Member
Are you sure you are charging at 22KW? I am not sure this is possible from 230 V 40 amp circuit. Are you using the Tesla Mobile connector or the Tesla Wall charger?
Hopefully someone smarter than me chimes in because I never knew 22KW charging at home with a Tesla was possible (max I thought I had seen was 11.5KW).
Hopefully someone smarter than me chimes in because I never knew 22KW charging at home with a Tesla was possible (max I thought I had seen was 11.5KW).
Also agree that 22 seems too high for what’s possible. What model variant is each car? If the 3 is a standard range it won’t charge higher than 32A.
Is the Model Y showing miles per hour of charge instead of kW?
What is the amp readout while charging each?
A/B
Its gotta be mi/hr reporting on the Y, which would be ~consistent with 5kw.
ATPMSD
Active Member
You seem to be mixing things up, so it is hard to answer your questions. We need the following to help you:
- Are you using the Tesla Wall Connector, a Tesla Mobile Connector, or something else and if so what is it?
- If you are not using the wall connector then you are plugging it into an outlet. What is the outlet type? It could a NEMA 10-30, 14-30, 14-50, or 6-50. Hopefully it is the 14-50!
- Are you using any adapters other than the one for the mobile connector itself (if that is what you are using)?
- When charging, open the charging menu. On this screen you can set the max charging rate. If you see a plus symbol you are not charging at the maximum rate so hit the plus symbol until it disappears. Do this in both cars. This is a location specific setting.
- Finally, on the charging screen, you should see two numbers separated by a “/“ such as 32/32. What does it say in each car?
Last edited:
Eric33432
Member
40 x 230 = 9,200 watts. I would say there is something wrong with both cars.
I am also in the camp of guessing that the OP of this thread is talking about charging rate in miles per hour, instead kW.
RayK
Active Member
I'll make a guess and say OP is mixing up A (amps) with kW. Which means both vehicles are not operating to spec. 40A circuit means 32A max. for charging current. At that rate one would expect around 27-30 miles of range per hour. However, there's no NEMA plug rated for 40A so there's a possibility that a 14-30 adapter is being used which means 22MPH would be correct.
ucmndd
Well-Known Member
With 230v being cited I briefly thought we were talking about something international but the zip code in the profile is Southern CA.
Safe to say there’s no sense to be made of this post given the info provided and I kinda doubt OP is ever coming back to clarify.
Safe to say there’s no sense to be made of this post given the info provided and I kinda doubt OP is ever coming back to clarify.
RayK
Active Member
I am sorry, you guys are correct I had different settings in each car. Model Y showed 22 mph and Model 3 showed 5KW. I changed the setting in model 3 and now it shows a 21-22 mph charge
That's a very good question. to get 5kW at 240V, you'd be looking at 24 amps or even less.
davewill
Active Member
Maybe he's got a wall connector and ended up configuring it for a 30a breaker (aiming at 32a charging) instead of for a 40a breaker. If he's actually seeing 230v on his screen, 24a@240v = 5.5kW, which might round to a display of 5kW. If the OP will report the amp display or just post a picture of his charging screen, and tell us what kind of EVSE (connector) he has, then we'll know.
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Cool, so 40A was a typo.
24*230=5.52 kW to 24*240=5.76kW and all is right with the world.
Thank you for the closure!
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