The BatteryLife Plugin (BLifePlugin) gathers and aggregates battery discharge statistics. It then calculates the remaining battery life with the current battery charge and current time of the day. The more days you use the plugin, more accurately it will predict the remaining time. Two or three days will be generally enough to see that it really works! If it has no statistics (stat file name is invalid, for example), time is evaluated as most battery plugins do - linear approximation based on the current discharge and the passed time.
BLifePlugin also shows a day average discharge graph, time to reach 100% when charging and other cool stats.
The plugin is compact with Smartphone devices running Windows Mobile 2003 (SE) and later with any screen orientation (portrait or landscape) and any resolution (from old 176×220 to current QVGA or even higher). The plugin was successfully tested on my T-Mobile SDA (running WM2003 SE) and I-Mate SP5m (running WM5).
Visit www.accosto.com for further information and the download page to get the installation package!
Also check out the active discussion topic for this application.