• entropicdrift@lemmy.sdf.org
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    1 year ago

    Meanwhile my Hyundai Ioniq not only allows you to open it with just the physical key, it also has a button to charge the 12v portion of the battery off of the larger hybrid battery

    • socsa@lemmy.ml
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      1 year ago

      Teslas automatically keep the 12v topped up from the HV system. But like any car battery they can die and eventually won’t take a charge at all. What they should so is have a bypass circuit you can activate to let the whole 12v subsystem pull directly from the HV system as long as the car is not in drive. The issue is that the HV battery needs a physical disconnect in an accident which is why they have the 12v battery in the first place.