Is my BB broken or is the battery dead?

I purchased two batteries from Amazon.com. When they arrived I placed one of them and the battery not charging even when I tried the other one. My question is whether the batteries dead or the Blackberry 8900 is broken and could not charge anymore? Please help.

Off brand from Amazon? Could be the issue, but you offer no details why you purchased them to begin with. The 8900 was great in its day, but that's quite an old phone now. You could take the batteries to a store for testing. If it is the phone, any repair would certainly exceed it's value and replacement cost. Good luck!