How to check if MacBook battery is genuine? My white MacBook's battery has completely died, so I'm looking for a replacement.

It costs $150 from Apple, or about $70 for allegedly genuine Apple batteries on eBay:



I'm leaning toward this cheaper eBay option, but when I receive the battery: 

How can I confirm if it is a genuine Apple product?

I am concerned with fire safety and so on.



Update: I bought the cheap eBay battery mentioned above, and it was an obvious fake.
You can't be sure unless you buy it from a Premium Reseller or an Official Apple Store. The difference in price makes me think that this is one of the many fake ones around.

My golden rule on this:
If it looks to good to be true, it most likely is.