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I checked a number of ID.3 in depth reviews. The vehicle looks so anachronistic by today's standards on the inside. It's best to say is a first gen mass market

I checked a number of ID.3 in depth reviews. The vehicle looks so anachronistic by today's standards on the inside. It's best to say is a first gen mass market EV coming out to market in 2021. For example, it has a 12V lead acid battery, and equally anachronistic 12V electric system. https://insideevs.com/news/464773/how-0783-update-avoids-id3 https://insideevs.com/news/464773/how-0783-update-avoids-id3... ID.3 is a botched, very hastily engineered car WV put onto market as a placeholder to have just anything in the EV category before they can engineer something proper. Tesla famously has a lead acid secondary battery too, but we can take that Model S is the first mass market EV. None EVs I've seen in China had a lead acid 12V battery. Even hybrids used lithium pack as the main battery for everything.

ben-schaaf 5y ago
Tesla Model 3 has a 12V Lead Acid Battery: https://blog.tesbros.com/replace-12-volt-battery-in-tesla/ https://blog.tesbros.com/replace-12-volt-battery-in-tesla/ Nissan Leaf NE1 has a 12V: https://youtu.be/me2_hC5j5gQ https://youtu.be/me2_hC5j5gQ MG ZS EV: https://www.whatcar.com/news/mg-zs-ev-long-term-test-review-report-4/n21602 https://www.whatcar.com/news/mg-zs-ev-long-term-test-review-... BYD e6: https://youtu.be/T-HTF_jiNzY https://youtu.be/T-HTF_jiNzY (at 6:55 you can clearly see a 12V battery) These are all 2nd/3rd generation EVs. Seems more like VW is following an industry standard than anything else.
- dathinab 5y ago
  Putting in a 12V classical car battery makes a lot of sense. Sadly I don't remember all the details but: - You want a 12V circuit to be able to use "standard car components". - You want to be able to power some components of the car separate from main battery in a way which can be powered from the outside (e.g. by replacing the 12V battery or attaching cables to it). - Just because a batter is well suited to drive a car motor doesn't mean it's also well suited to power a AC, entertainment system etc. Especially it might not be good at only powering such a system (i.e. it might not be good at such outputting some comparatively small load without to much peaks, loss or similar). I'm pretty sure you can find some resources on the internet which explain this is more detail with more technical knowledge :=) But just the fact that it allows you to "have a electric system like every other car" when it's not driving or charging makes it probably worth it for the manufacturer. And I would not be surprised that even if 12V Acid batteries go away EV still would have a secondary battery replacing it.
  - baybal2 5y ago
    I worked in consumer electronics, but I can't fathom at all why having two parallel electric systems is though to be simpler than one. A backup battery, maybe, but not a split system. > - Just because a batter is well suited to drive a car motor doesn't mean it's also well suited to power a AC, entertainment system etc. This has no basis whatsoever from electronics engineering standpoint. All these cars have something to provide regulated 12V from main battery already.
    - dathinab 5y ago
      > All these cars have something to provide regulated 12V from main battery already. Yes but as far as I know not while charging and neither while the car is "standing still/parked".
foepys 5y ago
Lead acid batteries are relatively eco-friendly because they are nearly 100% recyclable, even the plastic casing. Lithium Ion batteries on the other hand currently cause quite a lot of troubles in that department. Manufacturers use the lead acid battery for all 12V components. It's easy to use as a buffer.
- wkearney99 5y ago
  Handling lead isn't exactly 'eco friendly' Given how long the tech has existed it's no surprise to see recycling has developed for it. Especially given the ruinous effect mining for it has had in some places. No doubt efforts will develop to handle more modern battery tech as time progresses.

ben-schaaf 5y ago

Tesla Model 3 has a 12V Lead Acid Battery: https://blog.tesbros.com/replace-12-volt-battery-in-tesla/ https://blog.tesbros.com/replace-12-volt-battery-in-tesla/ Nissan Leaf NE1 has a 12V: https://youtu.be/me2_hC5j5gQ https://youtu.be/me2_hC5j5gQ MG ZS EV: https://www.whatcar.com/news/mg-zs-ev-long-term-test-review-report-4/n21602 https://www.whatcar.com/news/mg-zs-ev-long-term-test-review-... BYD e6: https://youtu.be/T-HTF_jiNzY https://youtu.be/T-HTF_jiNzY (at 6:55 you can clearly see a 12V battery) These are all 2nd/3rd generation EVs. Seems more like VW is following an industry standard than anything else.

dathinab 5y ago
Putting in a 12V classical car battery makes a lot of sense. Sadly I don't remember all the details but: - You want a 12V circuit to be able to use "standard car components". - You want to be able to power some components of the car separate from main battery in a way which can be powered from the outside (e.g. by replacing the 12V battery or attaching cables to it). - Just because a batter is well suited to drive a car motor doesn't mean it's also well suited to power a AC, entertainment system etc. Especially it might not be good at only powering such a system (i.e. it might not be good at such outputting some comparatively small load without to much peaks, loss or similar). I'm pretty sure you can find some resources on the internet which explain this is more detail with more technical knowledge :=) But just the fact that it allows you to "have a electric system like every other car" when it's not driving or charging makes it probably worth it for the manufacturer. And I would not be surprised that even if 12V Acid batteries go away EV still would have a secondary battery replacing it.
- baybal2 5y ago
  I worked in consumer electronics, but I can't fathom at all why having two parallel electric systems is though to be simpler than one. A backup battery, maybe, but not a split system. > - Just because a batter is well suited to drive a car motor doesn't mean it's also well suited to power a AC, entertainment system etc. This has no basis whatsoever from electronics engineering standpoint. All these cars have something to provide regulated 12V from main battery already.
  - dathinab 5y ago
    > All these cars have something to provide regulated 12V from main battery already. Yes but as far as I know not while charging and neither while the car is "standing still/parked".

foepys 5y ago

Lead acid batteries are relatively eco-friendly because they are nearly 100% recyclable, even the plastic casing. Lithium Ion batteries on the other hand currently cause quite a lot of troubles in that department. Manufacturers use the lead acid battery for all 12V components. It's easy to use as a buffer.

wkearney99 5y ago
Handling lead isn't exactly 'eco friendly' Given how long the tech has existed it's no surprise to see recycling has developed for it. Especially given the ruinous effect mining for it has had in some places. No doubt efforts will develop to handle more modern battery tech as time progresses.