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Model 3 120 volt inverter for emergency power?

Discussion in 'Model 3: Battery & Charging' started by ratsbew, Apr 25, 2018.

  1. ratsbew

    ratsbew Active Member

    Mar 3, 2012
    O'Fallon, IL
    Is there any relatively easy way to configure the Model 3 to provide 12 volt power to an inverter for use in an emergency

    Any idea how many watts the onboard converter supply to the 12v system with so that it can keep up with the demand?
  2. Rocky_H

    Rocky_H Well-Known Member

    Feb 19, 2015
    Boise, ID
    You won't be able to use it for much of anything. Those kinds of 12V sockets in a car only run through about a 10 or 15A automotive fuse. So that's only 120 or 180 Watts. When you convert the voltage by 10X up to 120, that reduces the current by 10X, so you could only draw 1 or 1.5A of current. That's not going to be able to run very much other than small electronics stuff.

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