EeePad Transformer owners who want to be able to monitor both the internal tablet and dock batteries can do so with XDA Senior Member Flexer‘s Dual Battery Widget. The app has received significant updates since the last time we spoke about it.
The widget displays the status for the internal and secondary batteries in the EeePad dock station. For devices other than the EeePad Transformer, the widget will only show the main battery icon. The widget is resizable and can be as small as 1 cell on your screen. Advanced options allow you to change the size and positions of the status text, and hide the second battery gauge when disconnected.
Dual Battery Widget is available for free on the Android Market. For more information (including the course code on Github), check out the application thread._________