A full version program for Android, by Phone Security Apps.

Phone Charger Battery Alarm is an app for Android devices. It provides a mechanism to secure your device against theft while charging at public places like the metro station, office, or an airport waiting lounge. The app also prevents overcharging of the battery, which can lead to damage or the loss of the data. The mechanism is based on the concept of a security code, which is generated by the app and must be entered by the user. If the code is not entered correctly, the alarm will be triggered, and the user will be notified that the phone has been stolen. 

How does it work?

When the user is charging the phone at public places, he has to keep an eye on it. If the phone is removed from the charger, the app will notify the user that the phone has been stolen.