On: Tesla adds bidirectional charging capability

[ChuckNorris89]

Bad decision as the cig lighter is connected to your 12V battery which powers the accessories not to the high voltage batteries.

[greendave → ChuckNorris89]

Many EVs automatically charge the 12V battery from the traction battery. Still not ideal, but it does work in a pinch.

[ChuckNorris89 → greendave]

Sure, but think of the conversion losses from traction battery -> 12V battery -> mains AC inverter.

In case of an emergency it's definitely usable but not ideal to call it a mainstream use case.