That statement is factually incorrect. There is a difference in charging time, and the difference is significant for many people that have posted about it in this thread and others.If you're in a hurry, 72A makes no difference;
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That statement is factually incorrect. There is a difference in charging time, and the difference is significant for many people that have posted about it in this thread and others.If you're in a hurry, 72A makes no difference;
<snark> I'll answer the question that was actually asked in the thread subject line--because if you don't get either, you won't be able to charge at home or at destination chargers. You really limit yourself if you can charge only via DC. </snark>
Put it this way. When your Mother in Law comes over to visit and charge......... Do you want her to stay for 2 hours or 4 hours!:scared:
The 48A or 72A onboard inverter is only used for AC charging.Question: how do I know if I have 48 or 72 amp on my P90D? I bought a demo so it wasn't a custom order. When I supercharge it says 48 amps (but it's greyed out) don't know if this matters.
Question: how do I know if I have 48 or 72 amp on my P90D? I bought a demo so it wasn't a custom order. When I supercharge it says 48 amps (but it's greyed out) don't know if this matters.
Returning to the original poster's question, about a year ago I posted the above. Since then there have been a few noteworthy developments to support my points. The most pivotal is the advent of about 400,000 actual reservations for the Model S which is scheduled to begin shipping this year and rapidly ramp up production in subsequent years. Presumably Tesla believes this will impact Supercharger availability and has prudently implemented two policies to partially mitigate congestion at Superchargers, 1) the elimination of "free charging forever" for new Teslas, 2) the imposition of a Supercharger idle fee.To answer your question we have to be able to predict the future. However, we have some points that Elon and Tesla have made to guide us. In a few years they tell us that the number of Teslas added to the roads will increase by over an order of magnitude, year after year. The questions is will Tesla be able to keep up with Supercharger expansion to deal with that influx of new Teslas? If Superchargers become congested destination chargers will take on added significance.
Earlier this year Elon stated at a press conference that the number of destination chargers would in the long-term be 10 times the number of Superchargers. Obviously, Tesla is hedging their bets by offering alternative to Supercharging. I assume they have a reason for that.
Unless you are a "road warrior" you probably don't have to install a full capacity HPWC at home although in most modern homes you probably could. However, I see spending the $1000 to upgrade to a 72 amp on-board charger as a prudent insurance policy that will permit you to charge at destination chargers 50% faster than the speed of the default 48 amp. If you are in line behind a number of other Teslas, even it you choose not to upgrade to the high capacity on-board charger, you will be very happy if the cars in line ahead of you charge 50% faster than your car. ;-)
Here in Florida the vast majority of existing destination chargers are near the full capacity of an HPWC. As others have suggested, perhaps it would be worth your while to research the situation in Virginia. (Click here to view the existing destination chargers in Virginia.) If you do that you will find all destination chargers in Virginia are at least 64 amps and most are 80 amps. So if you opt to go with the default charger you will not be able to benefit from that added capacity. Therefore, if you need a back up to Supercharging you would benefit by having a high capacity on-board charger.
Larry
Yes, you can defer the decision. However, you are incorrect. It costs $1,500 for the high capacity charger at the factory, and it will cost $1,900 to do it as a retrofit at a service center.You can make the decision later, since it is the same price whether you configure the car with it, or add it later. I think, it is just a software upgrade.
Tesla has a standard on-board charger with a capacity of 48 amps. To upgrade to a high capacity charger requires physically switching it out to a new high capacity charger with a capacity of 72 amp.I believe that old Model X's were 48AMP chargers that required hardware to upgrade to 72.
I am pretty sure my MX delivered in December 2016 has 72AMP hardware onboard that can be software upgraded from 48 to 72.
No, soon after the refresh the 48A chargers could be updated to 72A with just a firmware change. Then it was a separate part. That's why there were arguments here early on about whether or not 48A chargers could be upgraded after purchase-- some could and some couldn't.Tesla has a standard on-board charger with a capacity of 48 amps. To upgrade to a high capacity charger requires physically switching it out to a new high capacity charger with a capacity of 72 amp.
You are probably confusing this with the process whereby battery packs are upgraded from 60 kWh.
Larry
Larry, I'm sure a typo slipped into your statement, and that you intended to say "Model 3".The most pivotal is the advent of about 400,000 actual reservations for the Model S which is scheduled to begin shipping this year and rapidly ramp up production in subsequent years
Yes, thanks for the response. Even though its only a few hours old, unfortunately TMC doesn't permit me to correct my original posting to avoid confusion.Larry, I'm sure a typo slipped into your statement, and that you intended to say "Model 3".
Thanks for the clarification.No, soon after the refresh the 48A chargers could be updated to 72A with just a firmware change. Then it was a separate part. That's why there were arguments here early on about whether or not 48A chargers could be upgraded after purchase-- some could and some couldn't.
I personally cant see any reason to update for charging at home.