Android Application

In the source code of Android 1.6 (donut) application. There are few features in this application like Battery Info, Battery History and a new application Fuel Gauge. I want all these 3 features in one ... The new application fuel gauge has details of the battery usage of each application. These services provide information of one battery I want it for 2 batteries. This application will display 2 batteries one first page Battery A and Battery B ......... When battery A is operating B should be idle and should show all the statistics of A and vice a versa. 1. First the second battery will be in the system not spare. 2. For the idle battery the page will describe its info like temperature , what kind of battery , voltage, and the battery strength as in 100% (when completely charged) 3. the main page of the application will show 2 batteries one in use one idle. when clicked on the battery in use it will show all the stats of tht current battery and when clicked on the battery idle it will just show its info . 4. once battery A drains out the battery B should be in action and show all the detailed stuff like its history , info and how it is distributed among other applications.