Actually, Tesla made a design decision with the 3 that means we are using 12V to start our cars. Let me explain. Inside the battery pack is the High Voltage Controller (HVC). It is actually directly connected to the battery pack. It supplies 25V power to the High Voltage Processor (HVP) and High Voltage Battery Management System (HVBMS), and 10V power to the pyro disconnect. Those systems are what report battery capacity to the main computer, and control opening/closing the High Voltage Contactor.And would it matter, as we aren’t using the 12V to “start” our cars, more to power accessories.
Not yet but as a rule in Florida I like to replace every 3 years. Due to excess heat we see here 12V batteries don't last much past 3.5-4 years.Has anyone replaced their 12V battery yet?
Has anyone experienced the warning message that speaks to the battery going bad?
Should the battery be replaced every "X" number of years - no matter what?
Kind of off topic, but jumping the 12V battery on the Tesla is no different than jumping the 12V on an ICE car, is that correct? Would any portable battery jumper would do the trick? Would jumping the 12V battery yourself void any sort of warranty?
Mine died at 2 years and 65,000 miles. Pulled it out myself and took it to Tesla Service center and swapped it out for a new one. I think it cost $89 or there about. Tesla was going to come to my house, tow the car to the Service Center, and let me pick it up the next day. Much faster, easier, and cheaper to pull it out myself and install the new one myself. Also only took and hour from dead car to live car instead of having to pick it up next day.
Have you successfully tried the "mini jump pack'? Curious. I don't see why it wouldn't work.I've decided just to carry a mini jump pack with me so I can get home in case my 12V dies, since there's nowhere I really have to go at the moment. 2018 with 29k miles here.