To add to that, I have a pair of the same headphones and I replaced the battery in them this year. I won’t call it easy, but it was a lot easier than replacing a cell phone battery. Here’s a video: https://www.youtube.com/watch?v=Kh1cPCjfh34
The process really isn’t too bad, I also replaced my charging port because I was having issues with that. Lots of parts available on eBay
To add to that, I have a pair of the same headphones and I replaced the battery in them this year. I won’t call it easy, but it was a lot easier than replacing a cell phone battery. Here’s a video: https://www.youtube.com/watch?v=Kh1cPCjfh34
The process really isn’t too bad, I also replaced my charging port because I was having issues with that. Lots of parts available on eBay