Wednesday, February 9, 2022

On the road again...

 Over winter break we were able to install the new battery modules, check the wiring, and put is all back together.

To check the wiring we got a couple of boards from Janosch Oppermann.



His board is designed for the 2nd Gen BMS.  After we soldered his board as designed we had not found any wiring errors, so what you see here is after we filled in all the other LED's.  His design reduced risk and checked all the cells in small groups.  As we did not find any errors, we wanted to be sure there was no gross error and made the board messy.

End result is that we found no wiring error in our system.  With no explanation for the fault we checked many other things and came to the conclusion that the BMS chip may have been flawed or we killed it with static before installation.

We do have a blank board to send to the next person that needs one.









The X and ! represent Nissan splits in the pack that do not light.

While the battery was out we took the opportunity to weld in the rear seat pan, seal, sound proof, and paint it.

Next task, back to trying to read the BMS output so we can implement unsupervised charging.

We may have failed to point out:

Since the last 2024 post the car has been driving as a daily driver, we are not trying to get rid of a broken car, we are trying to get the ...