Plug-in for Locale (which is not free) to detect whether the power source is USB or other (AC/car charger/dock). Can't distinguish between non-USB sources, but you can use other plugins to detect docks.
Needs Android 2.2+ & Locale which isn't free.
Apparently fails on Motorola Droid but I don't have one to test.
Locale Power Source Plugin is a free software application from the System Maintenance subcategory, part of the System Utilities category.
The app is currently available in English and it was last updated on 2014-12-14. The program can be installed on Android.
Locale Power Source Plugin (version 4) is available for download from our website.
Just click the green Download button above to start. Until now the program was downloaded 208 times.
We already checked that the download link to be safe, however for your own protection we recommend that you scan the downloaded software with your antivirus.