Xperia C4 suddenly from 15% to 1%

[Huki]

I was using wifi and it was 15% and suddenly it became 1%. I just bought my Xperia C4 on April 10

[MarlonUk1]

does this happen often? if it happen just this once, try observe your device for recurrence of the problem,. also try to check if there is any app recently installed that may have glitched and cause this problem