Energy Saver switches off your symbian phones for the night and switches it on in the morning with the help of an alarm. Thus up to 30% of battery charge is saved. You also get handy interface for controlling your mobile phones alarms.
Energy Saver doesn’t switch off the phone if you are using it, but only 20 minutes after its being inactive. Thus your SMS or voice conversation won’t be interrupted until you finish.
Nokia smartphone s60v3, s60v5 (Symbian OS v9.1, v9.2, v9.3, v9.4)