How do you know? Brand new are still sold as grade A? (confused)
These have been worn, therefore I find them fairly disgusting
There is no way to tell. However, as I mentioned in the first post, I've used my first generation pair a lot now for the last 2 years and the battery life seems just as well; especially since lock down/working from home where I've used it on average 19 hours a day, I have not noticed the battery degrading. Prior to lockdown, I would use it for about 10 hours a day on a weekday, with the 9 hours of me being at work where I don't use it as often. 20 hours on the weekend though. You may want to get the foam replacement cups for this though, either official or third party. I've tried both and I'm happy with both, though some might not agree.
CeX put its prices up recently, remember getting same grade for £110 or £115 only a few months ago Still, these are extremely nice to use, versatile, very easy on ears and to operate, app is good, sound good enough for most ears Owned them, I can say I miss them...but promised myself to upgrade to 2nd gen someday