[BuB-44]

A (first, simple) measure is a voltage checker for each cell, for example with a device like this, one for each 8 cells.
It measures and shows the lowest voltage of each (of the 8) cells and can give a buzz when a configured low voltage level is reached.
Of course, you have to build an adapter, which needs a plug for a line from each cell (typically used for 'balancing' during load).
But, on your car, according to safety regulations, all this is likely enclosed in a casing, and if you open it, loose the warranty ;-)

 

[RADIOTECNICA]

Thanks for your answer Bub ln theory this information is available on the OBD socket, the fact is that I don't know of a dedicated app that makes these measurements.
To tell the truth I can connect with the EvBat Mon App by setting Mitsubishi imiev as vehicle, but the voltages and temperatures of the individual cells are out of order.
There is also the possibility to customize the PIDs and create a tool for each cell, but I don't know where to find them ... Here I assume we need an expert ...
Help!! I am willing to pay a hefty fee to those who help me ... Thanks

 

[BuB-44]

So you don't want to use a screwdriver, and aim at a software 'device'.

 

[RADIOTECNICA]

Bub I would rather read the information that is available in the vehicle, if I fail then I think I will have to use it (the screwdriver)