Hi, I want to ask about this UTWS3. I have it in a few months. But I have problem with the battery. Battery charging case is drained although I'm not using it at all. It's completely empty in just 1-2 weeks. Is it normal ? or there is something wrong already with my battery ? I try contact Fiio Customer Support, and they said that it's normal for battery charging case empty in 25 days. But it's only 1-2 weeks, it's already empty. Also, I have a few TWS, non of it's empty only in 1-2 weeks. A few months it's decrease, yes, but not that fast.