I just bought an extended battery from ebay.

I get a notification that states "Battery not supported, see owner's manual" The phone will not charge the extended battery. If I try to turn the phone off to charge it, it turns on and gives the error message.

The phone works however the notification does not disappear.

I have had multiple samsung, HTC windows mobile phones that I bought from third parties. This is the first time I ever had a problem. Just thought you should know. I am waiting to hear back from the manufactuer.