I have an odd issue with my Powerbeats Pro. I purchased them in 2020. They are charged up to full 100% in the case. Start playing, after about 20 mins left side shuts down like low battery. If I put it in the case for a few moments, iPhone says its at 96% and I can put it back on and start listening again for about 10 mins, then it repeats the same issue. I can do this ten times and it keeps on playing I did a rest by holding the charging case button 10 secs but that didn’t fix it. Any ideas? Thanks.