Dunno. I was told the story by a Jaguar service manager, and the car concerned was Jag I-Pace.
Guess whos revenue is directly affected by the low service costs of EVs.... of anyone, this guy should be the least trustworthy when it comes to EV tales
I did a quick search and there are stories of the 12v battery dying in the Jaguars, but all cars (EV & ICE) can run into this issue - not sure why the main battery isn't keeping the SLA charged effectively but I am sure it can happen. Here's an example:
www.ipaceforums.co.uk
However again that's the 12V SLA, your ICE has the same battery with the same limitation (but no bigger battery to charge it off) and of course just like a Tesla there's manual releases, they're discussed in the thread above too. There's no reason the fix for the EV couldn't have been the same fix for a non-EV - jump it, clamp on another battery or replace the 12V SLA. It just doesn't make for an exciting story.
But, as you are no doubt aware, your EV has more than one battery. It has the big one that makes it go, but it also has a much more normal car auxilary battery that provides ancillary services, in particular when it's otherwise shut down.
Yes, but it's continually maintained via the big battery, whereas ICE cars aren't. So a more accurate assessment is that I have at very least ~57kWh (in the Standard Range), the big one plus the small one, vs ~2kWh in an ICE car. Again why this doesn't happen in the I-Pace is beyond me (if indeed it doesn't), but the SLA is absolutely maintained by the main battery in Teslas when the security system is activated (and thus the car wakes from sleep) and plenty of other EVs, so I don't get how this puts an EV at a disadvantage with its ability to maintain the 12V SLA charge without having to run the engine to charge it via alternator.
In fact, I have to say that it absolutely must work this way, because how else would the SLA battery get charged? No alternator, no maintenance. If the cat was continually waking up the vehicle, the 12V would have been getting topped up. The thread above is a car that stayed asleep constantly, not that was woken up, they're different scenarios and the scenario above is identical to an ice car left for a period of time.
As for accusing me of being an EV luddite. I don't agree at all. I couldn't make one work for me last time bought a car, and I'm not sure that I could now, but there's no doubt that the choices are improving daily.
100% can guarantee I wasn't accusing you of this at all, I'm speaking about the guy who told you this tall tale. This is pretty much how the BS propagates - you have people who are convinced that the concept is flawed, and those who don't drive them can't really debunk the BS. Those who can are going to say BS in the same way if I started rattling off pure fantasy about ICE cars, plenty in here would step forward and correct me.
Also, keep in mind that Tesla have just started shipping cars with Lithium batteries in place of the 12V SLAs, which means a combination of greater capacity and lower footprint. The days of the 12V SLA are numbered, especially in EVs where lithium batteries are king:
Tesla's New 12V Li-Ion Auxiliary Battery Has CATL Cells Inside
insideevs.com
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www.thedrive.com
