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by tinoale
Tue May 21, 2019 2:10 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Another data point, not sure if that was before or after the Ah erase (probably before) :
Odo 87856
SoC 15,5
Lowest 3,655
Highest 3,730
Spread 0,075

Definitely before I touched anything with diagbox :
Odo 61164
SoC 10,5
Lowest 3,435
Highest 3,605
Spread 0,170
by tinoale
Tue May 21, 2019 2:03 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Hi I have Diagbox v7.1 only and the calibration menu for my C-zero is clearly different from yours My calibration only has 2 steps: Step one, start with more than 1 bar, turn The heater on, switch the car off, plug the charger in. Charge does’t start yet. If draws power until it automatically stops ...
by tinoale
Sun May 19, 2019 10:59 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Hi, I also believe we don't quite understand how the car estimates and/or updated the SOH of the battery. When you cleared the Ah value which initially went back to 45+ Ah, then hit a very low actual SOH indicated by cells voltage, I don't quite understand why the car did not instantly update the Ah...
by tinoale
Fri May 17, 2019 11:02 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

About that, what is the exact purpose of this battery age value in the BMU ? Some have noticed that they could reach 0% of SoC while the lowest cell voltage is still relatively high (3.2V for instance). Thus, not really using the whole battery capacity that they have available. They suggest that res...
by tinoale
Wed May 15, 2019 1:53 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Well, I have proceeded with the CMU10 board swap, and it worked flawlessly :D I swapped a CMU10 board with another CMU10 board from eBay. Nothing visibly wrong with the old board, no matter how close I look, could be the analog-digital converter as pointed out in this thread... Car is good as new ag...
by tinoale
Thu May 02, 2019 1:59 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Found the torque values ! http://mmc-manuals.ru/manuals/i-miev/online/Service_Manual/2012/index_M1.htm I have stands and a jack that goes beyond 50cm in height. I am actually chewing with the idea of removing the wheels before I drop the battery onto the rolling boards, in order to keep the battery ...
by tinoale
Tue Apr 30, 2019 11:07 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Hi Gary, Superb info, thanks! I have given some thoughts on how to remove the pack (with what I have at hands) and came up with the following sequence : - put the battery in safe condition, remove 12v battery - put the car on jack stands, remove the bottom plates, check for 0V, remove all the cables...
by tinoale
Sat Apr 27, 2019 12:47 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Since it is likely you cannot see the failure (for me the chip looked fine but did not work properly) If you want to confirm that you have the correct battery module, just disconnect the little communications connector, then reconnect the battery pack multi plugs and check the battery voltages, the...
by tinoale
Sat Apr 27, 2019 12:44 pm
Forum: Batteries and Battery Management
Topic: Single LEV50-cell wanted for our Citroen C-Zero
Replies: 105
Views: 39520

Re: Single LEV50-cell wanted for our Citroen C-Zero

Hi!

I am most likely going to proceed with a CMU board replacement.

I have noted GREAT information here, thanks.

I have not found any indication regarding the bolts torque one should apply, does anyone has some indication regarding those ?
by tinoale
Fri Apr 26, 2019 3:09 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 76
Views: 11416

Re: not charging my iON, cell or CMU or BMU problems

Hi, Thanks for the great info. I already ordered the CMU board from a reputable eBay seller, so I am not concerned about the board being another ID than 10, as he confirmed that. Rather I am a bit concerned that the board is not recognized because if was pulled from another VIN number... I guess I’l...

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