Got the 12v about to die warning last night when leaving for dinner so we took my wife’s Volvo just in case. Good we did because this morning it was dead as a door nail. Just went to O’Reilly and got their AGM equivalent “SSB 51RPLT” and did the swap myself. Kind of pricey at $200 but I wasn’t willing to wait for a mobile service appointment because I have some work travel scheduled for Tuesday and Wednesday. We’ll see how this battery performs.
Btw my Model 3 is only 20 months old but I have over 81k miles so not surprised the 12V needed replacing. And thanks to the on screen warning we were not stranded anywhere. Also big thanks to
@MTN Ranger for the informative video on how to access the frunk with a dead 12V and how to replace.