Lower Charge rates at Tesla stations

[Adventureboy]

2022 MME ER. I’ve charged at Tesla stations twice now. Both 250kw stations in different cities. The charge rates seemed poor to me. In both cases I started between 50-60% SOC and my maximum rate was below 80kw and dropped to around 65kw in a few minutes. At the 150kw CCS chargers I get over 100kw (up to 135kw) up to about 75% and around 90kw to 80%.
I am wondering if others see lower charge rates at Tesla vs.a good CCS charger as well.

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[65MustangBoy]

I also feel it is a lower charge rate. 85% is about the highest I have experienced.

 

[Lohms]

It helps if you precondition. Also at a lower state of charge. I used a Tesla supercharger that was next to an EA station. Used the built in navigation to navigate to the ea station (thus warming the battery) and plugged into Tesla supercharger. Speed spiked up to 158 initially before settling to around 120. As the battery filled it decreased to between 80-95 kw until 80%

 

[B177y]

Make sure you don't have a recalled Ford NACS adapter. I used my original adapter right before it got recalled and I got a slow charge on a V4 Tesla charger. After I received my replacement, I get full speed charging at the same charging station of up to 180kw for about 5-10 minutes and then slows to around 120kw past 50% SOC.

EDIT:
My Lightning gets the 180kw initial rate after receiving the updated charge curve. I believe that the Mach-e's still top at 150kw.

 

[Chiefwino]

Also the Tesla charge rate is dependent on the number of cars charging simultaneously. If most or all of the stalls are full, it can be significantly slower than if only a couple of cars are charging. I had a Tesla Model S for over 10 years and this is a frequent issue at busy locations.

 

[RickMachE]

Also the Tesla charge rate is dependent on the number of cars charging simultaneously. If most or all of the stalls are full, it can be significantly slower than if only a couple of cars are charging. I had a Tesla Model S for over 10 years and this is a frequent issue at busy locations.

While that may be true of V2 locations, I believe V3 and V4 locations have much less of any issue with this.

 

[YeOldeTraveller]

I have found no noticeable difference in charging at a Supercharger and a CCS charger.

Just a note on load sharing. V2 would split between the two posts on the same cabinet. V3 have site-level load sharing and 4 posts per cabinet. V4 cabinets are supposed to have 8 posts per cabinet, but these have not been seen in the wide yet.

 

[Adventureboy]

It helps if you precondition. Also at a lower state of charge. I used a Tesla supercharger that was next to an EA station. Used the built in navigation to navigate to the ea station (thus warming the battery) and plugged into Tesla supercharger. Speed spiked up to 158 initially before settling to around 120. As the battery filled it decreased to between 80-95 kw until 80%

No preconditioning is needed at our current temperatures and after an hour drive. It does help in the winter. I’m finding Tesla consistently lower than CCS and wondered if others experienced the same.

 

[Dnorwood98]

No preconditioning is needed at our current temperatures and after an hour drive. It does help in the winter. I’m finding Tesla consistently lower than CCS and wondered if others experienced the same.

I actually experience the opposite it seems, the times I use Tesla Supercharger, charge rate is higher and maintains longer before falling off.

 

[GreaseMonkey]

You sure you all weren’t picketing at a Tesla store last Saturday? Cause that’ll do it.

 

[AZBill]

While that may be true of V2 locations, I believe V3 and V4 locations have much less of any issue with this.

Actually the transformers to power the entire site can still cause them to under perform when the stations are nearly full.

My experience with faster charging vehicles (Rivian and Hummer) are that the Tesla chargers thermal limit very quickly in hot temperatures.

 

[ANev]

Just did a 700+ mile round trip road trip from the SF Bay Area to LA using Superchargers almost exclusively. I do feel that both the peak speeds and the overall curve are about 10% slower then I remember but I don't have a good 10-80 Charge on an EA or EVGo to compare to. Still managed 10-80 in ~39 minutes on a V3 for my last stop so I guess there's very little difference if any for total charge time. (2022.5 Premium 4x)

 

[Adventureboy]

During my last charge event, the stations were about 1/2 full and charging so I doubt capacity was the issue. During my first charge event, there was only one other car at the 10 unit charge station so that definitely wasn't a capacity issue. Given we cannot use V2 stations, that can't be the issue either.

 

[Adventureboy]

Make sure you don't have a recalled Ford NACS adapter. I used my original adapter right before it got recalled and I got a slow charge on a V4 Tesla charger. After I received my replacement, I get full speed charging at the same charging station of up to 180kw for about 5-10 minutes and then slows to around 120kw past 50% SOC.

EDIT:
My Lightning gets the 180kw initial rate after receiving the updated charge curve. I believe that the Mach-e's still top at 150kw.

Good point. I didn't get the email that others were talking about with the adapter recalls. My adapters both arrived same day. My Lightning gets 180kw as well. MME hasn't gotten more than 80kw yet. I'll swap the adapters and see what happens.

 

[KevOz]

Finally used my adapter at a Tesla charger today. Very quick process. Wanted to give it a try before I hit the road in May.

My rate was $0.42/kWh.

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