Hello DBMandrake and hello to all others in this very interesting forum,
My name is Sandro from Milan, Italy. Sorry for my poor English. I own a C zero and I have 2 friends with C zero too.
My second hand C zero of 2011, has only around 24000 km, 14k of them driven by me since I bought it in Oct 2017.
I can drive my car for approx 90 km in winter and 110 km in summer.
I use Canion with ODB Link LX and in case of SoC around 10%, I have 2 weak cells with up to 100 /110mV of difference with the highest cells. My pack has some 36 / 38 Ah according to Canion.
As with my 2 friends we bought an i-Miev from wrecking, we have dismantled it all and took all parts as spare parts for our C zeros, we just throw away the chassis..... (you can image how happy is my wife with so many car parts in my cellar
Therefore we have the battery pack too (by the way, I confirm there is Hall sensor for DC current measurement inside the batt. pack and I think to adjust its output analogue signal would not be too difficult in case we need to change the all cells with much higher capacity...).
I tested all the 88 cells by two different milliohmeters and I can select the best ones based on the internal resistance (this varies from 1.49 to 1.73 milliohm with one milliohmmeter, with the other one 1.75 to 1.98 milliohm).
However a better device for capacity cell measurement would be opportune I think....
Can I ask you the following questions?
-If I understood well, you replaced 4 cells in your car last Nov 2019. But you did not charge them like the other cells. Now few months passed, so I guess the charge level of the 4 cells should be aligned to the rest of the pack. Or not?
How is the range now comparing before the swap?
-My weak cells are 53 and 57 according to Canion. How can I located them in the pack apart measuring the voltage cell? Is there any other way to locate them?
I added some photos hoping they can be seen.
Thanks to you and to all will help me with their replies and comments.
PS: I am sorry but I do not know the colour meaning, probably there is no meaning apart the production lot, but I think the kind guy in Holland (that I know him because I contacted him for other matter) could probably give you more info.