Thankfully I never used one.
More here...
http://www.securecomputing.net.au/News/169172,energizer-warns-of-malware-in-battery-chargers.aspx
Regards...
Thankfully I use Linux :-)
Poor windows users, putting up with that ugly windows 7...
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fimg532.imageshack.us%2Fimg532%2F5421%2Fscreenshotke.png&hash=aed99a37905fc7d606d72e360859d26def5e2119) (http://img532.imageshack.us/i/screenshotke.png/)
Notice the desktop thumbnails? You know how hard it is working in a graphical context on windows? Its horrid!