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Hah! Glad you caught it. To be fair even ICE have preconditioning, though we tend to associate app-enabled cars with EVs. I wonder if this could happen, say, in a ‘25 Cayenne.

Here’s the data log. Unlocking the car caused a noticeable dip in voltage, but otherwise did not trigger it to charge. Awhile later I set a departure time through the app and that successfully forced it to wake up and charge as you can see. I didn’t actually drive the car until hours later.

I’ve got an update to share when I get more time. In short I had no problem running it down over three days with a 7W load, no reaction. I went down to 11.7v, confirmed with a separate volt meter, and had no problem unlocking and starting the car. It may have done something (or been worse) if I...

Yeah that’s fair. I just haven’t seen anything on the Macan that really rises to the level of “I really wish they’d fix that, bugs me every day”. As I’ve posted earlier on other threads, I think their BMS could be improved. And there’s a ton of value in being able to do OTA recalls. Personally...

It’s fair - people want different things from their cars. If you prioritize a car that gives a great connected experience and updates, I don’t think Porsche is it. I will just say that it is the funnest car I’ve had in awhile, and I’m not really itching for some new feature or bug fix that...

Maybe a leak… you check for a puddle of electrons on the ground under your car?

Of course, but in terms of calculating the capacity the math holds. This is good to keep in mind but also why I said “before draining completely”.

Yeah, that I think is the source of the info people are quoting about a rebalance procedure. The document itself doesn't imply it's a self-service way to rebalance, but at least mentions that it can occur. 1. drain 2. let sit awhile (6.5 hrs), and it even states a rebalance can occur at low SoC...

Just the 12v alone, if it were say 60Ah, that's 60 * 12 = ~720Wh. So you'd only be able to run the dash cam at 240Wh for ~3 days before draining that LV battery completely.

Ok, 0.7A @ ~12v is 8.4W. That's a tiny bit more than I had estimated based on research, but very close. You could push it to 10W assuming sometimes you have 12.5v or some variation. So rounding to 10W gives 240Wh required to run it for a day. Just the straight math on this with a 95kWh battery...

Here’s some more info from Taycan forum, with an actual Porsche TSB describing a procedure to learn the full capacity of battery. It isn’t clear when this is to be performed, but several people on the forum report monitoring their cells and observing it successfully rebalances them...

There’s some documentation out there, most of it is general like for solar batteries, and on random websites. I agree the details are opaque as far as what each manufacturer does and there’s some conflicting info about it - some say bottom balancing is only a factory thing. It’s confounded by...

I have read in older Taycan posts that Porsche only does bottom balancing, but not sure how to verify and I’m sure it could change with new platforms. I can say with certainty that it did *something* at the top end that adjusted the SoC percent meaningfully, the range not so much. Could just be...

The thing that would be frustrating about this is we are talking a minuscule amount of energy. A dual channel dashcam should use 5-7 watts online, less in parking mode. That’s only going to take 0.2% of the HV battery per day to keep things topped off. Maybe there is a comparatively massive...

This weekend, my daughter asked me to take her on an impromptu trip to Christkindlmarkt, a local German Christmas market. It was about an hour away, and it looked like I had just enough charge to make it there and back comfortably, so we headed out. However, as one might expect, this was a busy...

I took the battery temperature shot while driving , and later after charging I took a shot of the charging display in center screen. To get charging rate and battery temperature together, here’s one took just a minute or two after my last shot. Looking at the timestamp it had been charging a...

Reviewing marketing materials, they claim it can hold max charge to 35%, but also that it is possible to see 200kw up to 55%. So clearly I was derated not seeing 200kw between 40-55% but perhaps made up some difference toward the end by not having a completely cooked battery. Not sure! My...

They were already at 37% charge which, I didn’t have 200kw either at that level. It is somewhere around that point where even in optimal conditions it starts to drop below its max rate, my guess is that within a few minutes they might have bounced up a bit over 150 with the warming of charging...

It’s an interesting video and something to keep in mind. He says 17°C battery, which is really not cold at all, I think there’s more to the story. Indeed after watching the video they realized the charger wasn’t on its own circuit and got much better speeds after moving the Porsche to another...

So far I’m just testing the equipment. It is showing that while the car is charging, preconditioning, and driving the voltage on the low voltage battery circuit is higher that the base voltage of the battery when idle. Because the voltage is higher than the base battery voltage, it indicates...