I currently have accubattery installed. I have it set to 80%.

Third charge on a new replacement battery not a squeek from the app when it got to 80%. In fact not a squeek even at 100%.

Needless to say I am not a happy camper.

Is there an android app that I can use that:

(a) I can set to (say) 80% charge, and
(b) has a reliable audible alarm?