I have the battery of Amazon bought (and sold by Amazon). The batteries themselves are sold by Amazon genuine Sony merchandise and also cost less than 50 Euros (which is not so unusual, RRP from Sony are indeed 69 Euro, but Sony itself sold the battery in his shop for 55 Euro incl. Shipping) ,
I imagine even a customer a photo so you can see how the original Sony batteries must look together with packaging. It should be noted that under the blue "M" at the top left Sony Hologram must be found, which is probably more difficult to counterfeit than the rest of the package.
