The E72 provides very little information about the battery status. I use the iON BatteryTimer to have proper display of the battery status.

The application needs to run several days in order to provide proper information about the battery status.

The application support 3 ways to display battery status:

• Using the main application
• Plug-in – Display battery status on the Standby screen. To enable this option. Main application-> Options->Standby plug-in->On.
• Power saver. Nice display of the battery status as a screen saver.  To enable this option – Ctrl. panel-> Settings-> General-> Personalize-> Themes-> Power saver-> Select iON Power saver.

When opening the main application following information displayed:

• Operating time remaining to complete discharge
• Estimated future date&time of the battery being  completely discharged
• How long the battery holds its charge on average
• Number of full and partial charge/discharge cycles recorded by the application.
• Accuracy

The application can be downloaded from here. It can also be purchased there for only $3.95 instead of $6.95 until February 28th. (Please check the price before purchase, I can’t guarantee the price)

Following video is for N95 but it shows the supported features when using on Nokia E72