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Tesla switched from lead-acid to 12V lithium ion their S and X models in 2021. James May had some issues with his Tesla when the 12V battery went flat. https:/

• jandrese 4y ago
  Tesla is also switching to 48V for the accessories.
  • dreamcompiler 4y ago
    This was the best news I heard at Tesla investor day. It should simplify and cut the cost of the in-cabin wiring. When Sandy Munro interviewed Elon Musk a couple of years ago he said "Why are you still using 12v stuff in the cabin?" Musk's answer was that the automotive supply chain was entirely geared around 12v equipment and they had to take advantage of that to get to market quickly. I'm glad those days are almost over.
    • robocat 4y ago
      Isn’t there a whole trucking supply chain geared around 24 Volts?
      • rbanffy 4y ago
        All it'd take is a middle terminal in a 24V battery to make it a 12/24V one.
        • robocat 4y ago
          That would run the risk of unbalanced batteries. I had a small truck years ago, and everything was 24V as far as I recall.