TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Home Charging Model X 75D

Discussion in 'Model X: Battery & Charging' started by MidwestMX, Apr 24, 2018.

  1. MidwestMX

    MidwestMX Member

    Joined:
    Dec 24, 2017
    Messages:
    91
    Location:
    Midwest
    i just placed my order for the Model X 75D and the OA said that the car comes with a charger and that I could do a HPWC with the 75D battery. Is this accurate? He blamed it on the battery. I would prefer to have a faster charging solution if possible.

    Thanks for any help or recommendations!
     
  2. r0xx0r

    r0xx0r Member

    Joined:
    Jul 9, 2016
    Messages:
    427
    Location:
    CA
    1. The Universal Mobile Connector will come with the car (FREE). Max at 32A.
    2. HPWC can do much better. You have to buy it. But if you don't order the 72A upgrade for your car, max is at 48A.
    3. If you have 72A High Amperage Charger upgrade, so you can go 72A with the HPWC.
     
  3. kev1n

    kev1n Active Member

    Joined:
    Nov 17, 2016
    Messages:
    1,252
    Location:
    SF Bay Area
    whats your reasoning for wanting the fastest possible?

    is having a fully charged car by morning not good enough?(assuming it will charge about 8 hrs overnight)

    most do a NEMA 14-50 outlet and that with the new cable will give you 32A
     
    • Like x 1
  4. pkodali

    pkodali Member

    Joined:
    Oct 22, 2017
    Messages:
    816
    Location:
    Sacramento
    Did you remember to use a referral code?
     
  5. MidwestMX

    MidwestMX Member

    Joined:
    Dec 24, 2017
    Messages:
    91
    Location:
    Midwest
    My reasoning is more as a just in case I need to charge quickly at some point. In most cases the overnight charging is more than enough but was wondering why I could have and if the HPWC would make that much if a difference.
     
  6. MidwestMX

    MidwestMX Member

    Joined:
    Dec 24, 2017
    Messages:
    91
    Location:
    Midwest
    Yes! I used a code. It comes with $500 for servicing or store. Was thinking I would use the $500 for the HPWC.
     
    • Like x 1
  7. MidwestMX

    MidwestMX Member

    Joined:
    Dec 24, 2017
    Messages:
    91
    Location:
    Midwest
    What is the difference in charge time from the 32a, 48a and 72a?
     
  8. KJD

    KJD Supporting Member

    Joined:
    Dec 14, 2013
    Messages:
    1,260
    Location:
    SLC, UT
    On this page there is a handy chart that answers your question about charge time.
    Home Charging Installation
     
    • Informative x 1
  9. edlin303

    edlin303 Member

    Joined:
    Jan 29, 2018
    Messages:
    103
    Location:
    San Diego
    Good to hear you got one. Did your OA end up finding you a good deal on an inventory model?
     
  10. r0xx0r

    r0xx0r Member

    Joined:
    Jul 9, 2016
    Messages:
    427
    Location:
    CA
    At
    32A - You will get around 22miles/hour.
    48A - 26miles/hour.
    72A - 50miles/hour.
     
  11. TexasEV

    TexasEV Well-Known Member

    Joined:
    Jun 5, 2013
    Messages:
    7,632
    Location:
    Austin, TX
    The 75 kWh battery cars come with 48A charger. There is no upgrade option to 72A any longer. It's not because of anything to do with the battery, it's just that Tesla has eliminated option of charger size to avoid confusion such as yours. You get what you get. If you order a 100 kWh battery car, it comes with 72A charger.

    So if you install a HPWC, the fastest you would charge is 48A. If you plug in the Gen 2 UMC )that comes with the car) into a NEMA 14-50 outlet you will charge at 32A. As a practical matter you're likely going to charge overnight and it doesn't matter what time during the night the car finishes charging. If your travel pattern is such that you arrive home with an almost depleted battery and then leave for a long trip a few hours later, then charging at the full 48A with a HPWC may be helpful.
     
    • Informative x 2
    • Like x 2
    • Helpful x 1
  12. boaterva

    boaterva Supporting Member

    Joined:
    Apr 2, 2016
    Messages:
    7,465
    Location:
    Northern Virginia, USA
    The only other reason to use HPWCs (well, two) are to share a circuit between two (or more) cars with two or more HPWCs, and to keep the UMC in the car. But people rarely need to charge in the home area, and then just put it in the car when they go on a long trip. If they are going to need it on a trip (need to charge at other than Superchargers, etc.), they will also perhaps need extension cords and adapters and can also put the UMC in the car at that time.

    So, it's more a matter of convenience now, with the smaller charger on the non-100 cars,to get an HPWC instead of the UMC, than the quicker charging.
     
  13. Robwoodruff

    Robwoodruff Member

    Joined:
    Nov 21, 2016
    Messages:
    158
    Location:
    Ohio
    Using the 14-50 at 40A is plenty fast enough, (the new home chargers are 32A). I have never felt the need to charge at 48 or 72A. The Tesla battery is plenty big enough to use all day and charge at night. My cars rarely charge for more than 4 or 5 hours and are full. The only reason to buy a HPWC is to charge two or three Teslas in the same garage without popping the circuit breaker.
     
  14. David29

    David29 Supporting Member

    Joined:
    Aug 1, 2015
    Messages:
    2,045
    Location:
    DEDHAM, MA
    One other reason to have a WC (strictly speaking, they are not called "HPWC" anymore) is if you have to install it outdoors. I think the WC is a bit more rugged and safer to use on a daily basis outdoors than an outlet plus the mobile connector. In addition, the mobile connector and its cord will get wet, covered in snow/ice, etc., depending on where you live. If you can charge in a garage, the weather issue is moot.
     
  15. MidwestMX

    MidwestMX Member

    Joined:
    Dec 24, 2017
    Messages:
    91
    Location:
    Midwest
    Thank you all for the advise. Any downside to having a wall connector over the mobile connector? Reason I’m asking is the install cost for me is about exactly the same for either one and I am getting a $500 credit towards store with my purchase due to the referral promotion so that covers the cost of the Wall connector. Figure it can’t hurt having a faster charger if similar price. But maybe I’m missing something like cost to run or other possible reasons?
     
  16. Need

    Need Active Member

    Joined:
    Nov 22, 2017
    Messages:
    2,688
    Location:
    SoCal
    Are you sure the installation cost for NEMA 14-50 and HPWC are about exactly the same? If they really are, I would go with the HPWC since you have that $500 anyway. Normally I think electrician charges quite a bit more on the HPWC installation.
     
  17. WilliamInPhx

    WilliamInPhx Supporting Member

    Joined:
    Dec 21, 2017
    Messages:
    21
    Location:
    Phoenix
    Other than the cost of the WC (covered by your referral credit), the only other reason to go with the 14-50 would be for charging non-Tesla cars (friends / family / second car). If that’s not likely for you, the WC is the way to go.
     
  18. SMAlset

    SMAlset Well-Known Member

    Joined:
    Mar 4, 2017
    Messages:
    8,072
    Location:
    SF Bay Area
    #18 SMAlset, Apr 26, 2018
    Last edited: Apr 26, 2018
    We have a 2017 MS 75D and installed a NEMA 14-50 outlet in our garage and bought Tesla's corded mobile connector that we keep attached to the outlet all the time and keep the one that comes with our car in the car. We use Tesla's cable organizer to hold the hose and the charging handle. We're fine charging overnight, even set it lower than we need to for a slower charge. We liked the more minimal look of the outlet with plug (1-1/2 inches deep) over a mounted wall charger as our garage is a bit narrow with everything in it and a little bit easier to walk past. The lit portion of the mobile connector is 2 inches deep so pretty low profile against the wall. And we're not likely to hit our head or shoulder into it if we need to squeeze past it.

    If your electrician has already given you your options for each and they are about the same cost, it's kind of a toss up. Even with the wall charger can you set it for a slower rate of charge, but it would allow you to increase the rate above what a 14-50 would give you at max allowable. Placement is a consideration, inside or outside. If outside do you care how visible it is and accessible to anyone. We installed our 14-50 indoor garage outlet close enough to our driveway that when we lower our garage door (we add two pieces of wood blocks on each side of the cable to make sure the cable isn't crimped), and we can charge indoors or outdoors which is nice if company would need a charge in the driveway. Plus we don't have to worry about the weather or keeping the electricty locked up.

    Congrats on the new car!
     
    • Like x 1
  19. SMAlset

    SMAlset Well-Known Member

    Joined:
    Mar 4, 2017
    Messages:
    8,072
    Location:
    SF Bay Area
    #19 SMAlset, Apr 26, 2018
    Last edited: Apr 26, 2018
    Cost to run will still be the amount of kW used either way, regardless of whether it's faster or slower charging.
     
    • Like x 1
  20. Uncle Paul

    Uncle Paul Well-Known Member

    Joined:
    Nov 1, 2013
    Messages:
    5,513
    Location:
    Canyon Lake,CA
    Don't forget the HPWC is really cool looking.
     
    • Like x 3

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC