Csecrist12
New Member
- Joined
- Dec 10, 2020
- Messages
- 65
I am having some issues with a module from a Tesla Model 3 pack. I have 4 modules, (2) 23S and (2) 25S modules. Both 25S modules and only (1) 23S module are in well balanced condition. I am concerned with the 1 off-module.
So the issue is, I can see the module voltage at the ends of the module (it shows around 50-52V ish) which means the cells are low. I figured as they haven't been charged in a few years and I left them fairly lower for storage purposes. I went to each brick and everything was checking out except for 1 set. The 1 set shows a 0V, completely flat. I tried adding a PSU to the brick to bring it up close to the surrounding bricks and nothing happened except for the voltage coming up and staying at 0.18V. It wouldn't go any higher even though I was pushing 3.15A into that brick (as high as my PSU will go). I used a thermal
camera to see if I could find maybe a ground or short, but nothing lit up as I expected.
Any direction or idea I can go to revive this module?
So the issue is, I can see the module voltage at the ends of the module (it shows around 50-52V ish) which means the cells are low. I figured as they haven't been charged in a few years and I left them fairly lower for storage purposes. I went to each brick and everything was checking out except for 1 set. The 1 set shows a 0V, completely flat. I tried adding a PSU to the brick to bring it up close to the surrounding bricks and nothing happened except for the voltage coming up and staying at 0.18V. It wouldn't go any higher even though I was pushing 3.15A into that brick (as high as my PSU will go). I used a thermal
camera to see if I could find maybe a ground or short, but nothing lit up as I expected.
Any direction or idea I can go to revive this module?