Just last week my qc 35ii was working perfectly fine, but couple days ago a problem showed up where the headphones would randomly (regularly now) alert the battery percentage despite being at 80% or even after just being fully charged and then after that it would reconnect to my iphone 7 plus. This would also happen to my laptop (lenovo thinkpad x1 yoga 4th gen). This would occur roughly every 10 mins or so and its starting to get really annoying. I've done the following to trouble shoot the issue: disconnect all the devices from it, cleared and disconnected all devices from it, and reboot the headphones (following the 1s, 30s, 1min process to the T), but nothing has worked so far. Does anyone know what the problem is? They are also unfortunately out of warranty. I bought them two years ago. Since that was the case I also followed a video on YouTube that said cleaning the power button would do the trick but that clearly didn't work.