Battery replacement for Spirit X

Hey everyone!

I’m just looking to replace the battery in my soundcore spirit X’s, now that they’re starting to noticeably lose capacity. I bought them in 2019, so 3 years of use isn’t bad at all.

Anker doesn’t sell these anymore, or even a pair of earphones like them, so I can’t buy another pair. So I don’t have many other options.

I’m going to try and buy a new replacement battery, then use my iFixit kit and a soldering kit if need be, to replace the one inside my headphones with it.

Does anyone have any helpful resources? Links to another person attempting this? Info on internal dimensions, or the dimensions of the battery I’d be looking for?

Any help would be greatly appreciated.

I replaced the batteries of a FLARE.
With a little bit of tinkering skills its easy.

Works perfectly now.

The battery were “normal” ones and could be bought easily.
Oft course its worth to repair it to avoid more electronic garbage.