Go to advanced search

by DBMandrake
Fri May 24, 2019 11:39 pm
Forum: Batteries and Battery Management
Topic: Single LEV50-cell wanted for our Citroen C-Zero
Replies: 95
Views: 35370

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

Do you mean the Outlander ?

If so no they’re not the same they’re LEV40 which are a smaller capacity and physical size.
by DBMandrake
Tue May 21, 2019 7:34 am
Forum: Batteries and Battery Management
Topic: Is my battery dying ?
Replies: 53
Views: 7880

Re: Is my battery dying ?

In the last few days I reset the BMS in my car, as described in the following thread: http://myimiev.com/forum/viewtopic.php?f=23&t=3943&start=60#p38994 In hindsight not a clever idea because it resets the Ah capacity back to the factory default of 45.8Ah, and the car is very slow/reluctant ...
by DBMandrake
Tue May 21, 2019 6:05 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

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

Calibration Success! :D It is now reporting 33.0Ah instead of 45.1Ah... indicated full charge range has dropped by a full 17 miles from 70 miles to 53 miles, which is spot on what I actually get with combined cycle driving with the degree of battery degradation the car has. So basically with a batte...
by DBMandrake
Tue May 21, 2019 4:00 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

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

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 va...
by DBMandrake
Mon May 20, 2019 12:05 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

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

Better luck tonight - I got past step 2 and think I know what I did wrong last time, so the car is now charging on the final phase of the battery calibration. Unfortunately that will take about 4 hours so will be midnight before it finishes! So I won't find out the result until the morning. Assuming...
by DBMandrake
Sun May 19, 2019 1:11 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

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

I spent most of today trying to perform the battery calibration without success. :( I've done the calibration before so I'm not entirely sure why it refused this time... First I discharged the battery to 3.76v for the lowest cell voltage - Ah capacity remained at 45.1Ah and did not update. Step one ...
by DBMandrake
Sat May 18, 2019 4:55 pm
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

Re: Simon's big adventure

Wow what a great experience you've had--thanks for sharing the story, and thank goodness you went out prepared with extension cords and level I, even if not needed. You are definitely exploring new territory of these packs and cars, and every little bit helps understand what they do and how they wo...
by DBMandrake
Sat May 18, 2019 11:17 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

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

BTW I have apparently (by mistake) done just that. I went in BMU menus (Diagbox) looking for that option. I did not go into all the screens so I did not think I had actually done anything but this morning I had 45.7Ah in CaniOn, so I guess I went one click too far :idea: I had 33.7Ah right before. ...
by DBMandrake
Sat May 18, 2019 10:52 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

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

Thank you Simon that is very informative. As far as i know, nobody over here has a real MUT that will perform these tasks such as your Diagbox tool. Are you able to call up individual data list items or does it just give the entire list? For example items 56 and 57 deal with the eprom. ref: CMU DAT...
by DBMandrake
Sat May 18, 2019 7:00 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 74
Views: 8182

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 ? My guess is that when you replace the entire traction battery with a "new" one, you enter it's age so that the initial Ah capacity estimate is not that of a brand new battery but that of one that has sat in a war...

Go to advanced search