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M3 Onboard Charger 48 Amps

Discussion in 'Tech Talk' started by Sandy, Sep 2, 2017.

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  1. Sandy

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  2. EValuatED

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    Yes there's this, leading us to conjecture that the M3 may offer 48A charging,

    The Tesla statements that the LR will charge at 37 mph @ 40A, and,

    The 2nd Gen Mobile Connector that is said will come with our M3s has max 32A (even if on a NEMA 14-50) -- so perhaps a lower cost (of manufacture) unit than the MS/X UMC or Corded MC.

    I feel like we're still in anti-sell land -- what is the max charge rate for our future M3s? 48A or 40A?
     
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  3. Watts4me

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    Does this mean Tesla is holding out on us?
     
  4. Sandy

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    No, they just won't confirm. Yet. They will have to when the configure opens to the first non-employees.
     
  5. skygraff

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  6. Sandy

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    No, I think your right on. Not on a SC.

    An please don't stay out of posting! I don't own one either! Yet!
     
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  7. Scuffers

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    I'll put money on it has the very same onboard charger that the S&X do.

    What they limit it to in SW is another story, much like the high power option on the S&X goes to some 72A (single Phase - 24A 3 Phase)
     
  8. arnis

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    Onboard charger has three 16A modules connected parallely in US and not elsewhere (for 3-phase input).
    If there is price reduction on base model, then likely one module will be missing. Don't know about 3-phase solution,
    though other EV's often have 32A capability on one phase only. Maybe that.
     
  9. Scuffers

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    Yes and no, the old 11KW ones did, the current S&X has 24Ax3, software locked to 16A unless you have the high amperage charger option (this replaces the second charger option)
     
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  10. arnis

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    Financially doing software locks is not wise. S/X is not sold in huge quantities. M3 will. And standard range version will sell more when enthusistic wave passes.
     
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  11. Niko

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    I wonder what charge rate will be when using gen 1 hpwc, i bought one second hand and my dip switch setting choices are different than gen 2.

    I can set to 60amp dip switch for 48a charge on my gen1 hpwc (see first pic), yet no 48a-60amp option for gen 2 hpwc (see second pic)
     

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  12. Scuffers

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    They are the same, just the way it;s written is different.

    as I understand it, in the US, if you want 80A, you have to run a 100A breaker, etc (ie, de-rate the cct by 20%)

    the wording used on the first is breaker the second is supply, the latter (supply) is actually what it will draw I would suggest (assuming the car can accept it).
     
  13. Sandy

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    That's really strange as the standard MS charger is 48 amps.
     
  14. Scuffers

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    how so?
     
  15. Sandy

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    #15 Sandy, Sep 13, 2017
    Last edited: Sep 13, 2017
    48 amp charge current selected (I realize the car is supercharging at this time). Just more verification the onboard charger is 48 amps on the LR. Trevor verified this months ago but there still seemed to be some confusion on this board and others. The 2 best charging options will be the UMC on a 14-50 with 40amps in the US and 32 amps in Canada or a Wall Connector on a 60 amp breaker with up to 48 in both countries.
    Sorry I'm not familiar with overseas charging.

    IMG_0401.JPG
     
  16. garsh

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    As you say, the car is supercharging, therefore the on-board charger is being bypassed. So I don't really see this as verification of the max current for the onboard charger. Are you saying that this is a setting on the screen rather than a display of the current current (he says not-redundantly), and that it is not applicable to supercharging?
     
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  17. Sandy

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    Exactly. Same here, except not supercharging:


    Image-1.png
     

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  18. Scuffers

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    Well, the 48A is clearly not the supercharger charge rate as the screen is also showing 116 mi/hr - and 48A DC is nothing like enough to make that.
     
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  19. EMP40

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    Why would Tesla throttle the mobile connector to 32amps on a 14-50 connection? I put in 14-50 with a JuiceBox for my leased Focus EV specifically so that I could use all 40amps (10kWh) when I get the Tesla. i would hate to be on road trip using a 14-50 at only 32 amps.
     
  20. Scuffers

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    derr...

    so they can sell you an upgrade - same as they do with the S&M (and it's unlikely it's the Mobile Connector that's the limit, I bet it's SW controlling the on-board charger)
     

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