collin80/TeslaBMS

Tesla BMB heating

sagez400 opened this issue · 2 comments

Hello Collin,
I am working on a college research project involving the use of Tesla Model S batteries.
Following the previous issues discussed, I was able to get the code working.

However, I ran into an issue of the boards heating up a lot (in the area between the cell connectors) when module information was being displayed to the serial monitor. Regardless, the data is still being read properly.

Setup:
Tesla Model S P100D battery modified for 48V
Two Tesla BMBs (one for cell group 0-5, and one for cell group 6-11)
Boards run on 5V from the Arduino Due, powered by each proper group of cells as mentioned above, and use RX1/TX1
Only one temperature sensor is connected since I am only using one module
Baudrate set at 631578

I'm not sure if the code or the 5V from the Due is a cause here.
Any suggestions as to where I could start troubleshooting the heating problem?

Are you sure something isn't commanding balancing? That will heat up the cells.

I did not notice at first that the void loop function had an interval balancing command.
Heating issue is solved, thank you!