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2018 Model S P100D Battery Range Upgrade Option-

Discussion in 'Model S' started by scooby-snack, Jan 4, 2020.

  1. scooby-snack

    scooby-snack Member

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    So I just picked up a Low Mile 2018 P100D Model S (Build Date was 5/23/18) I was looking at the Window Sticker and happy to see it was purchased with the High Amperage Charge Upgrade (72), The next option I thought might be a gimmick . Any other owners have the Battery Range Upgrade? I was blown away when I was SC the car this evening. I didn't charge to 100% but the range was already exceeding 340 Miles. I think that is pretty amazing! Especially when I was fully prepared for 315 Max Range.

    Anyone else have some insight on this option and what in fact it actually does for the Car?
     
  2. AMPd

    AMPd Active Member

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    There’s no range upgrade for the P100D and your miles are probably set to show ideal rather than rated.
     
  3. Lasttoy

    Lasttoy Active Member

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    Post a picture for us too see, please.
     
  4. scooby-snack

    scooby-snack Member

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    Bah! You're absolutely right.

    Thanks for clearing that up! That's crazy. I've owned 4 Tesla to date and never even knew there was such a thing!
     
    • Like x 1
  5. Ostrichsak

    Ostrichsak Active Member

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    The high amp charger upgrade is an AC charger that allows you to run at 72A if your AC charger/connector is capable of that supply.

    This AC charger has no bearing on your Supercharging however as Supercharging is DC which is directly stuffed into the battery pack at some seriously high rates of speed. It bypasses the AC charger(s) though so it doesn't matter what AC charger you have your Supercharging speeds will be the same no matter what.

    You will see higher speeds though if you find a destination charger or if you have a HPWC at home connected to a 90-100A circuit. Often times, for cost savings, people will install HPWC's on a 50A circuit which will allow for sustained charge rates of 40A for safety. In these instances your car wouldn't be able to charge much faster than a standard AC charger would allow.

    On the rare occasion that you're traveling off of the beaten path, in a hurry, very low on juice and you find a destination charger or friend's HPWC that is on a 100A breaker though you'll see charge speeds approaching 55-60mph which is nearly double what a standard AC charger equipped car is capable of.

    It could be used more frequently if you install a HPWC on a 100A breaker at home and regular occurrences where a quick splash of juice to get back down the road would come in handy. For most, a simple 50A outlet provides plenty of juice for 99% of their needs at a much lower cost of install.

    You should do some searching as there's lots of details on this topic all over the forum.
     
  6. scooby-snack

    scooby-snack Member

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  7. scooby-snack

    scooby-snack Member

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    Thank you for the detailed reply. Yes definitely see a nice increase on my HPWC (wired for 100 amp) I didn't realize that Tesla tapers the speeds so much on AC as well however. At 74% the Amperage was dropped to 17kw. For some reason I don't recall that being so dramatic on past M3, 100D, and my First P85D...
     
  8. ucmndd

    ucmndd Well-Known Member

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    ~17kw is the maximum charge rate of your car while AC charging (72 amps x 240 volts = 17.2 kw). That’s not taper, it’s full-tilt.
     

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