Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Model X has single 72A charger

This site may earn commission on affiliate links.
So we just "lose" 8amps? I wonder if this was due to overheating issues with Model Ss charging at 80?

The Model S has capacity to charge at up to 80A; 40A is the limit if you have the single charger, 80A is the limit if you have the two parallel chargers.
The Model X has capacity to charge at up to 72A; a single charger, with no option for more.

Ok thanks. so it is 1 or 2 40 amp chargers instead of 20 amp as I thought.

what is the significance of 8 amps? ie how many miles per hour?

By my rough calculations, about 5.8 mph of charge.

I used 80 amps:58 mph, so 8 amps:5.8 mph. It may not be linear, though.

I got an email from the advisor I've been working with at Tesla.
She confirmed a 3rd generation 72A charger. She also confirmed that it will work with the current HPWC.

Here is the current specification for the HPWC ... you can interpolate to approximately 52mph range at 72A/240V.
A nice improvement over the single charger rate of 29mph and only 6mph less than the dual charger rate of 58mph range. :cool:

charger.JPG
 
Last edited:
You can play with words however you like, but the fact is going from 20kw charging to anything less is called crippling the charging power. An hour + of extra waiting is kind of a big deal. I don't have dual chargers, so it doesn't matter to me, but the choice would be nice for those who need the fastest charging possible. I don't know too many companies that go backwards in technology development.....

I believe it is you who are stretching the reasonable use of the terms involved. A "crippling" change means something that dramatically and seriously limits functionality: a human who cannot walk, for example. The Model S comes standard with a 40A charger, and the Model X has been upgraded to a 72A charger... that's almost double the charging rate, for every single car produced. The car has improved, giving you faster charging while (mostly) saving you the $2,500 (IIRC) twin-charger upgrade. Win-win IMHO.

The fact that there was an optional configuration available, at a significant extra cost, that enabled 80A charging on Model S means that the standard config on Model X comes within 10% of the optional/enhanced charging capacity of Model S... but you recover $2,500 (IIRC). If Model X is $5,000 more than a similarly configured (i.e. single-charger) Model S, but you get almost all of the benefit of the dual charger without having to pay for it, that means the real value difference just got cut in half, because Tesla gave each Model X owner an extra 32A of charging capacity at no extra cost.

Nowhere in this is there a "crippling" loss. Yes, a Model X will charge 10% slower than a twin-charger Model S... which very few people have. No, that's not "an hour + of extra waiting", it's 30 minutes at worst. And if you don't have dual chargers, and it doesn't matter to you, then why exactly do you feel compelled to state subjectively that this is "kind of a big deal" when you have no idea whether it's a big deal to others or not, and it can't be a big deal to you at all since it doesn't affect you?
 
Tesla has an extra configuration DIP switch in the HPWC. It would be very nice if they added a configuration setting that would allow for a 90A breaker and 72 Amp charging.
That would allow for using #4 copper wire which is a little less expensive, and more importantly, easier to work with than the 100A/80A required #3 wire.

Agreed. The feeling in my fingers is just returning months after installing the HPWC with 3 wire.:wink:

When we see the Manual for one of the allegedly newer, MX-era HPWCs, I wonder what we will find...

Interesting to note that the original 2012 HPWC had a setting for a 90A breaker and 72 Amp charging... perfect for the Model X.
The new 2014 HPWC revised the settings and eliminated the 60A/70A/90A choices and replaced them with lower power 12A/16A/24A options :confused:

Original 2012 HPWC ------------------------------------------------------------------------------> New 2014 HPWC

HPWC 2012.PNG
HPWC 2014.PNG
 
Last edited:
When you folks get your X's and come to Colorado, remember that there are 70 Amp, J1772 EVSE's available in Salida and Pagosa Springs, waiting for you to visit Southwest Colorado. Use those 72 Amp internal chargers with 70 Amp J-plugs and enjoy the back roads of Colorado.

I feel like we have come full circle. The Roadsters have internal, 70 Amp chargers. ClipperCreek made the 70 Amp EVSE's for the Roadster, had some excess inventory a couple of years ago, retro-fitted the units with J-plugs instead of the Roadster plugs, and sold them at a good price. I used that deal to get a couple of J-plugs installed. Now they wait for you new X owners...

Enjoy!!!
 
When you folks get your X's and come to Colorado, remember that there are 70 Amp, J1772 EVSE's available in Salida and Pagosa Springs, waiting for you to visit Southwest Colorado. Use those 72 Amp internal chargers with 70 Amp J-plugs and enjoy the back roads of Colorado.

I can attest to the excellent Clipper Creek 70 at Woods High Mountain Distillery in Salida! Also, the Woodland Motel on the north side of the city has a 10-50 outlet to use. Just check out Plugshare! Thanks again, Cottonwood!
 
But as Mark Tebbe from Chicago Next pointed out that he charges at 72 amps from 80 amps circuit all the time. The thread that said only 48 amps should be titled as speculation from delivery specialist's answer.

This was not a delivery specialist or inside sales. It was also reconfirmed through follow-up questions that I posed.

The early Founder's cars weren't built with the full production supply chain.

In my opinion, there's a higher probability that @MTebbe's car has a 72A charger due to it being a very early car built in non-production volume with small-batch parts than the probability of this being some product of miscommunication. I would love to be wrong.
 
This was not a delivery specialist or inside sales. It was also reconfirmed through follow-up questions that I posed.

The early Founder's cars weren't built with the full production supply chain.

In my opinion, there's a higher probability that @MTebbe's car has a 72A charger due to it being a very early car built in non-production volume with small-batch parts than the probability of this being some product of miscommunication. I would love to be wrong.

The best thing tesla could do imho is offer both options with a warning that if you select 72, your order will be delayed by X time. Or offer the retrofit, but I worry about the demand that will up on the service centers.
 
The first time I asked, the Tesla Charging program manager told me the that the X was going to have a 72 amp on board charger...I double checked and now got this response....

Thank you for reaching out. I apologize, our engineering has recently clarified their plans for Model X charging capability, the 72 amp on-board charger is no longer accurate. I am now being told that the on-board charger capability of Model X will be max 48 amps. When connected to a NEMA 14-50, Model X will use its on-board charger to charge at approximately 25 miles/hour. Higher amperage Wall Connectors (such as those found at our Destination Charging locations) will provide a recharge speed of approximately 30 miles per hour.

Walter F | Charging Installation Program Manager
45500 Fremont Boulevard | Fremont, CA 94538
 
Thank you for the screenshot Tam. Just to note, I do not believe anyone is saying the Founders car have anything other than 72 amp. What is being said is that Signature and Standard Production car purchasers are being told those will have 48 amp. The car you reference is a Founder VIN.