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Quicker charge by segregating battery cooling?

Discussion in 'Roadster: Technical' started by graham, Jul 22, 2008.

  1. graham

    graham Active Member

    Dec 2, 2007
    Aptos, California
    There have been many threads that mention:

    a) Whatever amount of energy being used to charge the Roadster, a portion of that energy does not go into the battery, but goes into running the cooling system for the battery instead.

    b) There have been multiple talks about how to speed up charging

    c) The existing in-home charger goes only to 70 Amps because that is the largest circuit you can put into residential homes.

    Would it be possible to speed up charging slightly by having the 70 amp circuit fill the battery, but plug in a separate ordinary 15 or 20 amp circuit just to run the cooling system? (assuming Tesla added a second separate plug for the cooling system?)

    For that matter, could a home-owner install 2 separate 70 Amp circuits, have 2 chargers and plug them both in the car in parallel to gain a faster charge? (and dim the lights of the neighborhood in the process...)
  2. malcolm

    malcolm Active Member

    Nov 12, 2006
    Hi Graham

    This was something that martin got us to look at (sort of) during his time at TM.

    Tesla Motors - think

    Insufficient spare capacity is quite common. This limits an EV owners maximum recharge rate for individual and (future) multiple cars.

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