I think you can't easily open up to replace the battery. But i don't see the need for that. If it needs to be charged when i need it, just can plug in the power cord and keep on using is.
Don't ever had any problems with the drivers, i just plug it, first time windows need it to set it up and worked great. With steelseries own software I also don't have any problems. Only downside is that if you want better quality audio, you need to open the software.
I'm constantly unplugging and plugging in the receiver between my pc and ps5 without any problems.