Can Smog Test Torch Car Battery?

No, I don't think the smog test had anything to do with your battery dying. I've had batteries literally drop dead on me without any warning. Two were AC Delco and one was an Interstate. If the battery is 5 years old it's time for a new one. If you plan on replacing it yourself make sure you plug in a memory saver device before you disconnect the old battery. Many newer vehicles must have their computers powered up all the time, including during a battery replacement. Otherwise you'll need to go back to the Dealer for the computers to be reprogrammed. You should also put some Vaseline on the battery terminals before you hook up the cables. This will prevent corrosion in the future. Hope that helps! Jim

I’ve had this happen to me, my vehicle started fine, drove to town parked shut it off, did my shopping and when I tried to start it, nothing the battery just went away that quick, replaced the battery and everything was fine. If you got 5 years out of a battery you got 2 years longer than most.

Site error.

If you had to jump that battery then it was on it's way out and could have died at any time , Use a memory saver if you do it yourself