I have a Quest 2 that I bought in the US when it first came out and I have one of the units with the officially unacknowledged battery problem that it wont charge above about 70% and it wont charge while running even if attached

 

So I bought a replacement battery from ebay without looking at how hard it would be to replace.  Now I've looked at a Youtube video on howto, I'd rather have someone else do it!

 

Any places where they'll replace a battery in Bangkok?

I would recommend the VR repair Center on Soi Phuttha Bucha 36.