What does the 12v battery do?

[wcpopi]

As I am sitting here at the charging station, with the air conditioner running, I realized that I don't really understand what powers the barriers peripherals in the car. Does the main battery charge the 12 V battery? anyone understand how it all works?

 

[Ksa23]

The 12v battery is there to provide the proper voltage for the onboard/interior electronics. When all goes right, the high-voltage battery maintains the 12v battery on most EV's (including Lucid)

 

[wcpopi]

The 12v battery is there to provide the proper voltage for the onboard/interior electronics. When all goes right, the high-voltage battery maintains the 12v battery on most EV's (including Lucid)

Thanks!