Default [Q] [Q$ Where is soundfile for "battery full notification"

Hi,
I have root access to my i9505 and want to disable battery full notification.
Searched around and saw I can install 3minit framework or wanam xposed or in settings let screen on to set the notification off, BUT I just want to REPLACE the soundfile by one less anoying.
Setting on/off is not a good solution for me.

I searched in root for the soundfile "battery full notification" but didn't find it.

Pls can someone tell me where to look or what is the name?
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