Kia’s flagship EV has a battery problem

I first realized there was an issue with Kia's flagship EV9 when I tried to unlock my car last year. The hulking three-row SUV was sitting on my driveway completely dead. The key didn't work, the app connection to the car was gone, and I was already late to an appointment.

Luckily, I had prepared for such a scenario, after reading about widespread 12-volt battery issues with the EV9. I managed to open the car with the manual key that Kia supplies and access the frunk to reach the 12V battery and use a booster I had purchased to jolt it back to life.