If your device forces a vibration when the battery is charged, then I'm not sure you can stop that in Tasker.
You can test by setting "Interrupt: None" (which should block all notifications) and then charging your battery.
If it still vibrates when charging is complete, then the "battery full" notification is bypassing Android's settings.
There are apparently lots of complaints about this problem.
http://www.google.com/search?q=samsung+battery+full+notification
On Monday, March 2, 2015 at 11:04:58 PM UTC-7, azjerry wrote: