That is a good question. How many cells does the ID4 have.

 

If someone can check their ID4 and help me with an answer tonight, I'll be very grateful. I'm taking the ID4 to the cottage tomorrow. If something is wrong, I can find an alternate arrangement.

 

Here is the HV doc. https://static.nhtsa.gov/odi/tsbs/2021/MC-10186407-0001.pdf

 

There are 288 cells in the ID.4, too many to try to compare Volts while scrolling. When checking the health of my battery, I prefer just these 2 PIDs: HV battery highest cell V and lowest cell V. When its balanced and working properly they are always within 0.01-.02V.

 

There is 12 modules and total of 288 battery cells. Reason for not populating other pids is related to the dongle you are using. Poor quality or not one of tested and confirmed working dongles will usually have this experience with carscanner app.
What is the name of your dongle and who is the manufacturer.

 

Which exact model dongel does read correctly?

 

Thank you CPF, SunWizard and VW Technican!! This makes me feel alot better
I'm using the ScanTool OBDLink LX

 

As @VW TECHNICIAN indicated there are 288 cells in the pack but they are connected in groups of 3 in parallel so there are only 96 cell voltages.

kevin

 

Thank you kind sir.
Makes me feel a lot more at ease for tomorrow's trip.

 

Looks like I'm not out of the woods. I charged it to 100%, range is showing 381km.
The HV Battery energy content seems wonky, thoughts?

 

Looks like I'm not out of the woods. I charged it to 100%, range is showing 381km.
The HV Battery energy content seems wonky, thoughts?

Yes, quite low. But we need to see more relevant parameters:

Battery issues? [cells out of balance]

So, I’m finding that using 80% of my battery (100 to 20%) I went 137 miles (3.3 m/kWh). 65mph, ac on. I looked at my Car Scan an noted that, After some recharging) there was a difference in voltage and state of charge in one cell. Cell 90 showed 52% charge, which was three save on all of the...

www.vwidtalk.com

 

It looks like you have a bad cell. What is your HV battery highest cell V and lowest cell V while at 100% SOC. Watch those 2 numbers after you drive a few miles at < 40mph and then charge to 100% again, and wait a few hours for the BMS to balance the cells.

Edit: Since your SOC BMS is 4% different from your SOC DIM it may help to discharge to <10% and charge to > 90% again so the BMS learns your actual capacity and the Max energy content will likely improve and be a more accurate capacity measurement.

Ypu will need to charge it to 100% then live it off not using vehicle for 4-6 hours then check again for cells voltage high and low. If balanced, take vehicle for 5 miles drive minimum without aggressive acceleration or using B mode. After return to the L2 charger or L1 charge it again to 100% and wait for 4- 6 hours and check again cells high and low V.
If all corrected, continue keeping eye over time with battery pack cells balance and high and low imbalance. If it continues going like what you posted have your vehicle back to service department for further diagnostics.

 

Can you provide battery cells deltaV
What is your offset between highest cell and lowest cell in the pack. There is specific pid to show you this...and also pids that will show you highest and lowest cells # in the pack.
Set this 4 pids and watch overtime while you charging and driving which cells # are showing up for highest cell # and lowest cells #.

 

Information was before I left the house this morning at 100% charge. When I was going thorugh the battery voltage, cell 1 to 96 had either 4.14 or 4.15. Screenshot also from this morning.

Noteworthy information: I got my first charging error (Lvl 2 home charger Thursday of this week), and got my first Lvl3 error this afternoon). By error, I mean the charge port had a red light and an error message on the screen.

I am charging to 80% now, and will charge to 100% later this weekend. I will pay more attention to the information mentioned above when I drive the car again tmr or the day after.

The thursday error screenshot

Again, thank you everyone!!

 

Adjust Guage for battery highest and lowest cells voltage to show three decimals.
Other than that your cells deltaV is spot on.

 

Charging issue can be related to many users errors. Make sure you have snug connection, plug applied all the way. If all users errors are eliminated and EVSE or fast DC charging connections, then you should bring vehicle to the service department. But try to record as many as possible failures that you experience, so service department can better understand what is happening beside historical data recorded on can bus network.
Try couple different EVSE L2 charging and couple different fast charging locations so you have eliminated any errors on the fast DC charging side or EVSE L2 side.

 

Hmm.. everything looks okay aside from the max battery content & HV Battery content? Will check again in the morning

 

I think your battery is okay. SoH 71800 wh with energy content 100% at 66125 wh is ratio of 0.92, thats is usually what I have. I show you my data record in screenshot below. 381km / 236 miles to 100% is not unheard of when driving faster and/or in colder weather.

 

Below is range I get when cold earlier this year:

Highlighted blue below is the range when I gunned through the interstate highway at 85-90mph (don't tell the po-po) 🤫

 

Ahhh. Thank you!!!!!!
Having a tracker is a great idea. Going to do the same.

 

New recall in the app for my 1st Edition [97ZZ & 93P7]

My 1st Edition previously showed one recall with no solution in the app. Now it shows two recalls (HV battery control and HV battery cell). Not sure if these are related but now I can schedule service to fix both. Is the battery cell module recall a new thing or related to previous recall?

www.vwidtalk.com

 

should have read that thread i see lol. I saw the title and never thought it would have my answer. Also explains the unpopulated 97-108 values.
Thanks John411iD

 

There are 96 cell voltages you can monitor. Each module is 8 in series of 3 parallel cells. 8 x 12 modules in series = 96.

 

62 kWh >>>> 12 in series X 9 module in the pack = 108 cells watched by BMS
82 kWh >>>> 8 in series inside module X 12 module in the pack = 96 cells watched by BMS.
62 kWh consists of 2 prismatic cells in parallel for each orientation.
82 kWh consists 3 prismatic cells for each orientation.
This may be difficult to understand.
But people familiar with battery packs, modules and cells orientation and how they are connected will understand logic above what i have posted.
For cells or modules in parallel connection BMS can only measure as single cell.
Example
2 cells in parallel for BMS it will be counted as one cell ( but Ah will be higher than single cell)
5 cells in parallel for BMS it will be counted as one cell ( but Ah will be higher than single cell).
Ah rating for single cell is set by design and other factors while in R&D.

 

62 kWh >>>> 12 in series X 9 module in the pack = 108 cells watched by BMS
82 kWh >>>> 8 in series inside module X 12 module in the pack = 96 cells watched by BMS.
62 kWh consists of 2 prismatic cells in parallel for each orientation.
82 kWh consists 3 prismatic cells for each orientation.
This may be difficult to understand.
But people familiar with battery packs, modules and cells orientation and how they are connected will understand logic above what i have posted.
For cells or modules in parallel connection BMS can only measure as single cell.
Example
2 cells in parallel for BMS it will be counted as one cell ( but Ah will be higher than single cell)
5 cells in parallel for BMS it will be counted as one cell ( but Ah will be higher than single cell).
Ah rating for single cell is set by design and other factors while in R&D.