I think I will grab one. For $10 who really cares if it is real or not.
So I got a response to my ebay question:
Q: Are your batteries genuine Andida batteries which can be verified on their anti-counterfeit website? All genuine batteries have a code which can be entered here http://www.andida.hk/enfangwei/
A:
Hi yes dont worry, we are one of the agent which get items from their factory directly. Thanks