Damn. That’s not a simple battery!
And it smells burned
I assume you can separate circuit from cells?
https://gruenesocial-userfiles.nbg1.your-objectstorage.com/media_attachments/files/116/149/509/060/327/879/original/5ee01e3d0f377cb6.jpeg
https://gruenesocial-userfiles.nbg1.your-objectstorage....