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BYD hybrid can supply power for appliances, MX should have similar feature?

Discussion in 'Model X' started by asiaworldcity, Jan 27, 2015.

  1. asiaworldcity

    asiaworldcity Member

    Jun 13, 2014
    Hong Kong SAR China
    This could be an old idea, but China car manufacturer BYD did it! BYD hybrid "Tang" was able to supply power for household appliances less than <3000W, MX should have similar feature. I think this would be super useful during camping/road trip. :smile: Plus this shouldn't be hard to achieve, just need to modify the AC-DC inverter.
  2. Danal


    Dec 11, 2014
    Fairview, TX, United States
    Copied from the Tesla Model S warranty:

    Exclusions and Limitations
    Warranty Limitations
    This New Vehicle Limited Warranty does not cover any vehicle damage or malfunction directly or indirectly caused by, due to or resulting from normal wear or deterioration, abuse, misuse, negligence, accident, improper maintenance, operation, storage or transport, including, but not limited to, any of the following:

    • Failure to take the vehicle to a Tesla Service Center or Tesla authorized repair facility upon
    discovery of a defect covered by this New Vehicle Limited Warranty;
    • Accidents, collisions, or objects striking the vehicle;
    • Any repair, alteration or modification of the vehicle, or the installation or use of fluids, parts or
    accessories, made by a person or facility not authorized or certified to do so;
    • Improper repair or maintenance, including use of fluids, parts or accessories other than those
    specified in your owner documentation;
    • Towing the vehicle;
    • Improper winch procedures;
    • Theft, vandalism, or riot;
    • Fire, explosion, earthquake, windstorm, lightning, hail, flood, or deep water;
    • Driving the vehicle off-road, over uneven, rough, damaged or hazardous surfaces, including
    but not limited to, curbs, potholes, unfinished roads, debris, or other obstacles, or in
    competition, racing or autocross or for any other purposes for which the vehicle is not
    • Overloading the vehicle;
    • Using the vehicle as a stationary power source; and
    • The environment or an act of God, including, but not limited to, exposure to sunlight, airborne
    chemicals, tree sap, animal or insect droppings, road debris (including stone chips), industry
    fallout, rail dust, salt, hail, floods, wind storms, acid rain, fire, water, contamination, lightning
    and other environmental conditions.
  3. Chris TX

    Chris TX Active Member

    Sep 30, 2013
    Dallas, TX
    That just means they aren't responsible for damage caused by tapping into the battery (traction or 12V) to use for appliances or home backups. This doesn't mean it voids the warranty if you use them.

    I've always thought using a ~3kW inverter would be awesome to have connected to the 12V terminals. People do it all the time with other EVs. Just make sure the car is "on" where the DC-DC converter is actively keeping the 12V battery charged.

    And yeah, V2G would be awesome to have for the MX or MS in the future.
  4. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

    Jun 21, 2012
    The 12V terminals are protected by a 50 amp fuse, as found by someone on the forums. Keep it to 600W or less, unless you want to experience the wonderful Tesla Service experience. :)

    There have been rumors that Tesla is considering V2G as part of its broader strategy that includes the home batteries (10 kWh units) and such; for now, however, putting energy into the car means for the car's use only.
  5. yobigd20

    yobigd20 Well-Known Member

    Oct 28, 2012
    Skaneateles, NY
    Already been done for the S by Artsci

  6. Saghost

    Saghost Active Member

    Oct 9, 2013
    I'm pretty sure that a 3 kW inverter will kill any of the current EVs - at least, if you have a sustained 3 kW load attached to it. The Volt has the most powerful DC-DC converter I've seen specs for in the current generation, and it is only rated for 175 amps - about 2 kW - and the car uses a few hundred watts sitting at idle. Drawing more than the converter can handle will discharge the 12V battery; on a Volt with a 3 kW load it'd take about half an hour (60 Ah rated AGM battery, ~1.25 kW remaining load,) after which the car will be unusable (the contactors will open to protect the big battery when 12V power fails,) - if none of the electronics are damaged (no bets either way) it can be 'fixed' by recharging the 12V - assuming the inverter shuts off before the battery is damaged. Regardless, not a situation you want to be in during a power failure...Walter

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