Which battery from Amazon.com should I buy for my 6D?

I'd buy an original one, provided it was possible to determine which one is not a fake. Unfortunately, the comments to the "Canon" products speak for themselves - as does this article

So, I'd like to hear from fellow forum members "go for this, I have it and you won't be disappointed"

Thanks in advance

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have camera, will travel
http://suadoni.zenfolio.com/