Hacker News Reader

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

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

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.