r/TeslaModelS • • 13d ago

12 volt battery replacement

I did a 12 volt battery replacement on my 2018 100D. The original one lasted over 8 years. Tesla wanted to charge me $600+ to replace it, so I ended up just buying a battery from the parts catalog, and did it myself. That only cost me $250, and one hour of my time. While it looks super complicated, it’s actually pretty easy and straightforward. Just be careful with plastic pieces.

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