Not stopping AC charging at Timer's percentage setting

[SergeyIndy]

To try to summarize AC charging then.

1. If there is no active timer (for some future point in time), the car will charge to 100% when the charging cable is kept plugged in.
2. But charging to 100% should be done only when needed for a trip that starts within a short time of reaching the 100%.
3. An active recurring timer is by definition a timer for a future point in time and will cause charging to stop at the set percentage, and not restart.
4. If I have no active recurring timer and only set an active one-off timer when I actually need charging ("ad-hoq"), there will be times without any active timer. At these times the car falls back to its default behaviour as described in point 1.
5. To avoid charging to 100% then, I can create an active one-off timer for a point in time well into the future as an addition to my ad-hoq timer. It should have a percentage setting lower than what I usually set my ad-hoq timer to (see point 4).

I have checked my Norwegian language manual. It is quite hard to understand that this is how it works. But the more important point to me is: is it a desirable way of working? In my opinion not. It should be easy to understand how to set a charging goal percentage that sticks, and very easy to actually set it. Other brands do this.

That is timers, which I obviously did not have a good understanding of. So what about profile settings? My mental picture of them is that they set what should be a minimum level reached as quickly as possible after plugging in. But reading the manual again, they are obviously more capable/complicated than that, both alone and in combination with timers. Do any of you use them for these more advanced things?

I thought I knew how things work reading everything about Timers and Profiles, but as we worked with the OP on the on off Timer use case, I did not know that car will charge to the target in the timer and then restart and gun for 100%, then there is NO point of a onetime timer with a target.

Most covered topic, no question, but each use case is different. For OPs, question about Profiles to not overcomplicate, your understanding is absolutely correct, the Profile sets a minimum charge level asap when plugged in but not any lower than 25%. However, when you want to throw in charging in a preferred low cost time window you run into another big flaw in the logic below.

The big complaint about this that has been carried over to Macan EV is that if your current SoC is below 25% and you plug the car in the evening, there is no escaping of the car charging asap to 25% regardless, only then it will look at the preferred window time points in the Profile, rendering simply telling the car to only charge between time point A and time B impossible if your SoC is below 25% at the plug in time.

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[Jhenson29]

then there is NO point of a onetime timer with a target.

There is if you want the timer to be 100%. I have that use case where I want it to charge to 100% on one day, so use a non-repeating timer.

Also, note that it won’t continue charging after the timer expires if you have a profile set. It’s only if the non-repeating timer is the only thing set, and the reason is there are no further instructions, so it goes back to its default behavior (I.e., what it does when you plug in with no timers or profiles), which is charge to 100%.

 

[F1Ruaraidh]

EDIT

Timers and profiles are not complicated or difficult to use in reality once the basic concept is understood.

Thousands of posts on this forum about the same recurring topic and questions.

The fact that there are thousands of posts about a relatively simple feature proves it's poorly thought out.

I've spent years in EVs but it's taken a week or two in a Taycan to realise the charge scheduling is overly complicated.

 

[W1NGE]

The fact that there are thousands of posts about a relatively simple feature proves it's poorly thought out.

I've spent years in EVs but it's taken a week or two in a Taycan to realise the charge scheduling is overly complicated.

Actually, it proves people don't read the manual or take time to comprehend.

140,000 Taycans on the roads and a small percentage of owners on this forum.

 

[F1Ruaraidh]

Actually, it proves people don't read the manual or take time to comprehend.

140,000 Taycans on the roads and a small percentage of owners on this forum.

A decent HMI is self-evident.

 

[or1]

I read most of the manual two years ago when the car was new. Must admit though that I don't remember all of it. And when the car started behaving what I will call counterintuitively (after having used a few other EVs), I asked here before checking the manual. It was not wise - the manual does say explicitly that it will behave the way it does. But they could have chosen another behaviour, and I still think they should.

 

[figure1a]

I have had no problems with "overcharging" before, but I don't know why. Has the wallbox (Easee) made this happen, or other settings? Because now the car stops briefly at the set percentage, but after some minutes it starts again and goes to 100. Anyone know remedies for this - apart from pulling the plug?

It is awfully bad behaviour. Bad for the battery, bad for trying to slot the charging into the periods when electricity is less costly, bad for balancing total consumption in the house. To have to get up at any time in the night to unplug in order to stop charging at 80% or whatever is hopelessly silly.

By the way, wife's BMW i4 M50 does not do this, I can set a timer with percentage and it sticks. It is also on an Easee wallbox. And my Taycan did not do it until a couple of weeks ago.

I had the same problem as you until a few months ago when I read another post that said changing the "location independent" to your home address solves the issue. The app really is horrible with the way that it is setup.

 

[F1Ruaraidh]

I have it set to my home address.

Unfortunately the idiot Taycan PCM thinks my home address is at the other end of my street.... ?‍

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