Xiaomi has claimed that Mi Band 2 can last for 20 days for normal use, so the conclusion is normally Mi Band 2 just get 5% in a day. For the first charge, I tried to charge my Mi Band 2 from USB laptop,  and that takes 3 hours to full charge. Then I use for around 2 weeks until the battery status indicate about 30% (Normal I think).

Then the problem appear at second charge, after more than 4 hours I charge the band via USB laptop it just stucked at 98%, and let for 1 hour again it's still same. I try to change the source from power bank and Xiaomi Mi 4c charger but nothing so I think that just little problem.

A day of use and check battery status, I shocked the band consume about 20% of battery life, it just 78% from 98% yesterday, WTF.

I tried to charge later and still stuck at 98%, that makes me crazy. Various ways to solve the problem I try and I found the best ways.

And the solutions is :