Main Traction Battery Upgrade i-MiEV using CATL93Ah cells

Daniele Schietroma said:

Citroen C-Zero with 88 cells.

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Negue said:

Are you sure that ar 88cells ?
I know that C-zero have only 80 cells

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piev said:

First of all, there are many threads already here about this type of endeavor.
I was asked to start a thread on my project. I must say I couldn't have gotten this far without all the great posts on this and other forums.

I have had a few setbacks but won't bore you with the details.

Current state of the project:
New battery cells 93Ah NMC are installed in the vehicle.
Range was reset with MUT3 SE using windows driver by kolyandex to 45 Ah.
Current range 66 miles.

I accomplished this last year but then got in an accident and had to find a new car to finish this project.
When I moved the battery pack to the new vehicle I had a bad temperature sensor on one CMU board and the vehicle would not go over 35 mph or charge.
So, I put a CAN bridge between the CMU and the BMU to fake the data for that one sensor.
I was able to charge the battery to full and it drove normally.

Hardware:
I used an Arduino Due with a Dual CAN Bridge made by Daniel Kasamis from ~bit TOGGLEBIT.
The Cells I used I bought from Alibaba. 93Ah 3.7V nominal charge to 4.2V
They also sell a 75Ah that will fit in the original space.
I paid around $70 a cell with shipping to the USA from China.

One thing I didn't notice was the size of the terminals. they were M6 and the LEV50 had M8's. The sales rep said they could change these but I already had the cells.

I will add posts as I think and decide what would be useful for people that want to do their own.

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