One earbud not charging

This is my second pair of hammerhead true wirless earbuds. The first pair had one earbud that didn't work at all from the start, no matter what I tried and also didn't connect to the app (the app won't detect them unless both have connected to the phone). Sent them back. My second pair worked well for ~ 2 weeks (besides cutting out at traffic lights and when my phone was in my pocket) and now have a similar problem. One earbud is not charging and only the fully charged one connects to my phone. One time when I did get them both connected, the app said one was 100% charged, and the one that was playing up was 10%. I'm really not willing to send yet another pair of these back. Third time lucky, but I think I'll go with another brand unless I can be assured not to face more problems again.