For ppl who are still paranoid about over-charging their smart-phone battery (which is highly unlikely), this app allow you to trigger a ringtone alarm when say battery reach 50%-100%. This alert you when the charge is completed.For ppl who face limited power socket for charging (say in some hotel or motel room for e.g) and you have multiple devices that need to use the socket for charging, this app allow you to configure 50%-100% to alert you so you can un-plugged your smart-phone to allow other devices a chance to use the power socket to charge.To configure, set Ringtone for alert, select the percentage you want to be alerted when the battery charge reach and tap Save. Finally remember to tap Start to start the service.Important points to note: - Set screen timeout to be longer so the ringtone can play longer to get your attention.- Disable any screen lock because it may prevent the app fROM waking the smart-phone up to play the ringtone.- With 15 minutes to test th