In an ICE car - the 12V battery has two functions: a) power the vehicle control system/audio/etc; b) Physically turn the engine crankshaft at startup. The latter by far takes the most energy, albeit just for a brief period each trip --- however 99% of the times an ICE needs to be "jumped," the systems associated to "function a)" still operate ---- the radio and lights still work but not enough juice to turn the engine.
In a Tesla/EV --- the 12V battery only performs "function a)" ---- it only powers the computer systems/radio/etc, and obviously has a huge and constant source to charge off of......
I think it is safe to assume the draw on the 12V system is greater than its recharge rate ---- maybe all the OTA updates, uploading/downloading, etc --- basically the energy consumed computing "stuff" is draining the battery faster than it can be recharged ---- perhaps only is recharged when the car is actually in motion/driving?
I'm puzzled to say the least ----- Tesla/EVs have two batteries: the huge traction battery and the typical 12V ---- and the latter can die while the former is fine.....
In a Tesla/EV --- the 12V battery only performs "function a)" ---- it only powers the computer systems/radio/etc, and obviously has a huge and constant source to charge off of......
I think it is safe to assume the draw on the 12V system is greater than its recharge rate ---- maybe all the OTA updates, uploading/downloading, etc --- basically the energy consumed computing "stuff" is draining the battery faster than it can be recharged ---- perhaps only is recharged when the car is actually in motion/driving?
I'm puzzled to say the least ----- Tesla/EVs have two batteries: the huge traction battery and the typical 12V ---- and the latter can die while the former is fine.....