S4 mini Verizon doesn't inform when battery is charged full although phone is off

[AC Question]

I no longer get any kind of a sound alert when my phone's battery is charged 100 % when switched off. It worked only once, then nothing. Is it a feature or a failure?

 

[srkmagnus]

I don't think the phone alerts that the phone is fully charged if it's powered off. You'll see the graphic indicating the battery is full. However, there won't be any notification sound.