Recommended upper charging limit

Faults and Technical chat for the Volkswagen ID.3
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TomID31978
Posts: 1
Joined: Mon Dec 28, 2020 8:46 am

Post by TomID31978 »

Hi All

I only picked up my id3 a couple of days ago so still exploring.

However, please can someone tell me why the We Connect ID app recommends setting the upper charging limit to 80% for an optimum charging session? Why not 100%? I’m 20% down on my range before I’ve even started!

Many thanks
T

Deleted User 192

Post by Deleted User 192 »

It’s to prolong the overall life of the batteries, 80% is recommended by the manufacturers of most EVs - not just VW.

When you use a rapid charger (50kW+) the management system on the car slows the rate significantly once you’re above 75-ish%

Charge to 100% when you really need the range, and to 100% occasionally to trigger a re-balance across the individual cells within the pack, but to 80% as the norm.

Adding this link in case you’ve not seen it: https://www.volkswagen.co.uk/electric/r ... nd-waranty
simonrg
Posts: 249
Joined: Wed Dec 23, 2020 11:40 pm

Post by simonrg »

scott28tt wrote: Mon Dec 28, 2020 9:03 am ......
Adding this link in case you’ve not seen it: https://www.volkswagen.co.uk/electric/r ... nd-waranty
Thanks very useful link, I am finding all sorts of useful links on the Volkswagen website which are general for all Volkswagens but which I haven't found reading about the ID.3.

In the link it states:
"3. To fully charge the vehicle (100%) use a charge timer in the charge manager and then drive off immediately after charging is completed."
Am I correct the ID.3 does not have timed charging and so it is not possible to do this apart from manually?
ID.3 Business Pro Performance + Heat Pump - 0564 (23/12/20) - 0783 (28/1/21) - 0792 (7/5/21) - 0910 (24/10/21) - 3.2 (6/7/23) - Hardware H20 - North Yorkshire
Deleted User 192

Post by Deleted User 192 »

Timed charging arrived with the 2.0 / 0783 software, but that’s only being installed on new cars or ones that go into the workshop with faults - it will be generally available on all cars as part of the 2.1 rollout in February/March.
hungerdunger
Posts: 100
Joined: Fri Dec 11, 2020 8:28 pm
Location: Carmarthen, West Wales

Post by hungerdunger »

That's interesting info from VW, but the opposite of the guidance for the electric Mini: viewtopic.php?f=8&t=360&p=1576#p1576
ID.3 1st Edition - Manganese Grey - purchased 15/12/20.
Deleted User 192

Post by Deleted User 192 »

hwhbev
Posts: 124
Joined: Sat Oct 17, 2020 6:48 pm

Post by hwhbev »

A respected electrochemist, Euan McTurk (@106euan), has just said on Twitter:
A monthly charge to 100% is good to calibrate the BMS. I wouldn't proceed to leave it at 100% for several days or weeks though - time the full charge and balance to finish a few hours before you next drive the car.
(BMS = Battery Management System)

I think this is good advice for anyone who is only doing local short trips and only ever charges to VW’s recommended 80%.
Bmoldon
Posts: 3
Joined: Thu May 06, 2021 5:45 pm

Post by Bmoldon »

How do you set the charging limit to 80%. Just done my first charge and it went to 100%, even though I changed this to 80% on the app and on the screen within the car
Deleted User 314

Post by Deleted User 314 »

Hmm, odd. I would go back into both to check they are set correctly. When setting from the app make sure the car is in an area of good mobile signal. I’ve never had a problem restricting the charge level to 80%
simonrg
Posts: 249
Joined: Wed Dec 23, 2020 11:40 pm

Post by simonrg »

Bmoldon wrote: Fri May 07, 2021 7:14 pm How do you set the charging limit to 80%. Just done my first charge and it went to 100%, even though I changed this to 80% on the app and on the screen within the car
I experienced a bug (car or server?) with previous versions of the software where:
  • if you started charging on the app and the battery charge level was already above the charge limit the car would still charge
  • if you charge charging on the app and the battery charge level was below the charge limit the car would stop charging at the charge limit
ID.3 Business Pro Performance + Heat Pump - 0564 (23/12/20) - 0783 (28/1/21) - 0792 (7/5/21) - 0910 (24/10/21) - 3.2 (6/7/23) - Hardware H20 - North Yorkshire
NpID3
Posts: 3
Joined: Thu Jan 07, 2021 11:09 pm

Post by NpID3 »

Are you using “Locations” to set a timed charge? If you are then when you set the time, scroll down to see two sliders. The lower one might be set at 100% and it seems to override the “top level” charge limit on the charging screen
Folkramfer
Posts: 64
Joined: Sat Jan 02, 2021 4:23 pm

Post by Folkramfer »

Ours is set at 80% max in the app. I've just had to unplug the car at 91% because it has kept on charging. I cant see a way to stop it charging in the app either.
Strangely, the app and the car both say 91% and 219 miles but that would be 240 at 100%. How can this be?
Deleted User 192

Post by Deleted User 192 »

Folkramfer wrote: Tue Jul 06, 2021 11:41 pm Ours is set at 80% max in the app. I've just had to unplug the car at 91% because it has kept on charging. I cant see a way to stop it charging in the app either.
Strangely, the app and the car both say 91% and 219 miles but that would be 240 at 100%. How can this be?

Did you have the car controlling a scheduled charge by any chance?

As for your mileage question, were you expecting to see the WLTP figure of 260-ish, or are you wondering about something else?
robgarth
Posts: 82
Joined: Wed May 26, 2021 2:42 pm
Location: Wiltshire

Post by robgarth »

App crashed during a charge while on a public charger. It showed the car charging but the level and range had froze, caused a panic run back to the car. Car showed the same readings. Stopped charge. Got home then reinstalled app, all was well the next day with both showing the correct values after they had managed to sync. You should be able to start and stop the charge using the green/red slider.
Rob
Business Pro, 62KWh, 150KW, 2.1. White metallic. Wiltshire.
Folkramfer
Posts: 64
Joined: Sat Jan 02, 2021 4:23 pm

Post by Folkramfer »

scott28tt wrote: Wed Jul 07, 2021 6:02 am
Folkramfer wrote: Tue Jul 06, 2021 11:41 pm Ours is set at 80% max in the app. I've just had to unplug the car at 91% because it has kept on charging. I cant see a way to stop it charging in the app either.
Strangely, the app and the car both say 91% and 219 miles but that would be 240 at 100%. How can this be?

Did you have the car controlling a scheduled charge by any chance?

As for your mileage question, were you expecting to see the WLTP figure of 260-ish, or are you wondering about something else?
Sorry for the 6 month late reply but we were on Holiday and completely missed your answer. Today is appropriate because my wife has just charged her car and is asking again.

This is the picture today:
1) App says charging is set to 80%.
2) App says car is 100% charged and has 199 miles
3) Car says it is Charged to 100% and has 206 miles

Our questions are:
a) Why does it not charge to just 80% as per the app setting?
b) Why, if it is at 100%, does it not have about 261 miles?
c) Why do the app and the car show different miles?
Deleted User 314

Post by Deleted User 314 »

What is the setting in the car for max charge?
Deleted User 192

Post by Deleted User 192 »

Folkramfer wrote: Wed Dec 22, 2021 10:07 am
scott28tt wrote: Wed Jul 07, 2021 6:02 am
Folkramfer wrote: Tue Jul 06, 2021 11:41 pm Ours is set at 80% max in the app. I've just had to unplug the car at 91% because it has kept on charging. I cant see a way to stop it charging in the app either.
Strangely, the app and the car both say 91% and 219 miles but that would be 240 at 100%. How can this be?

Did you have the car controlling a scheduled charge by any chance?

As for your mileage question, were you expecting to see the WLTP figure of 260-ish, or are you wondering about something else?
Sorry for the 6 month late reply but we were on Holiday and completely missed your answer. Today is appropriate because my wife has just charged her car and is asking again.

This is the picture today:
1) App says charging is set to 80%.
2) App says car is 100% charged and has 199 miles
3) Car says it is Charged to 100% and has 206 miles

Our questions are:
a) Why does it not charge to just 80% as per the app setting?
b) Why, if it is at 100%, does it not have about 261 miles?
c) Why do the app and the car show different miles?

A. No idea, what was the maximum set as in the car?
B. Because it’s cold, and that 261 miles is a WLTP lab test conducted at much more efficient temperatures
C. The app shows data stored by VW, the car must have sent an update to VW then made a new range calculation
Folkramfer
Posts: 64
Joined: Sat Jan 02, 2021 4:23 pm

Post by Folkramfer »

Thamks for that. Checking, the car was set to charge to 100% even though the app was to 80%. Now fixed in the car.
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