I am looking for a method to detect the current battery life on a pocket pc device using vb.net, vb6, or vba even.

The devices are locked down on the production floor so users cannot access settings etc... but the device then has no method of checking the battery life left, causing some serious downtim issues within the company for people walk quite a ways back to the office to grab another device and put the other back on the charger...

Any ideas or insights would be greatly appreciated as to methods, etc... or how to even start.

Thanks........