Fairbuds case self discharging

Hey all! I have really new Fairbuds (bought them in March). I have run then through the washer in my pocket unfortunately so I’m sure the warranty is void.

However, I had this issue even before that:
Sometimes the case is warm to the touch when it’s just sitting on my desk.
The case is almost always discharged. If I test it in the morning and it’s yellow, and I don’t use it all day (and didn’t just put a dead Fairbud in) it will be red by the evening.

Any advice on troubleshooting this? They’re repairable right, so maybe, just maybe, I should be able to figure out what’s wrong and fix it?

Or: are you taking this problem too?

Interesting… I don’t have this issue on my Fairbuds (have two pairs).
Only ANC (active noise cancelling) does not work on left Fairbud on one pair.