Hi karam..
Nice script that you have..
Previously i have Nokia E72 which have a great power management (imho). When the E72 is charged in on condition, it will tell you with sound notification as soon as the battery is fully charged (to avoid the battery over charged that can decrease battery life, i supposed)
I just wonder and hoping that you (maybe) can make a script too, to trigger a sound notification when the battery is fully charged t no over chargingwhich ake the battery always in optimized conditions). Just a thought..thanks for the consideration..