good advice! I will adhere to it.

That’s a good idea!

The battery is actually only half swollen. It looks like its made of two pieces (left and right) which are taped together in the middle. You can fold it a little bit and it feels like if the plastic tape was cut there would be two separate pieces connected with wire. I bet with the right knowledge it could be salvaged somewhat.

It might be a fun project for someone else but I’m not brave enough to make this my introduction to electronics.