Hi Tom,

I've taken apart a 75kWh battery. It is made of 27 modules with a 4S3P configuration for 108S. The cells are from CATL. I've attached some pictures.
The BMS is based on MAX17823B, with nine BMS PSCB in a 12S configuration.

Despite the 50kWh battery, where each module has a BMS with a ...

It’s a oem vivaro 75kwh pack
3s4p
27 module
Daisy chained
9x slave bms that controls 3 modules each
can find nothing really apart from a few posts about them stripped down
Thank you

Hi I have a problem with a erratic tempature sensor
So am gonna drop the battery and fix it
What I want to know if someone knows is the order
I have 27 modules in my battery pack
With 2 tempature sensors in each so total 54
The pack is daisy chained
I have number 52 that’s dodgy and keeps ...

Friendly warning.

Do not mix up order of master-slave modules as you going to burn down master (blue) module bms resistors or even max IC. I've Done that.


Does the
Master look the same then and is that the first one on the sting
I thought by reading that the main control box was the master ...

Do you know the part number for this battery
Or a pic of the sticker on the side in the casing please

Does anyone know what order the batteries modules are in
I have a dodgy temperature sensor on one of them (52) that keeps giving me traction error and had enough of Vauxhalls who cannot and won’t fix it so gonna have to do it myself and change the dodgy module
Either that or replace the whole ...

boekel wrote: ↑Thu Apr 10, 2025 9:20 pmI don't know.

Think it maybe these just carnt see them close enough

Ok thank you

Do you know where the module temperate sensors are
Or a picture or one
I keep getting a traction error and live data shows sensor 52 erratic
Thank you