I had hoped to be ordering with "FBA" reasonably safe from the replicas, but this is not so. The pack looked real, even a hologram was it. Stutzig made a bad pressure on the inside of the cardboard and the evidence was to look at the scale. This battery weighs 40g, the original (of which I've 2) weighs 57g.
I'm sorry for the dealers that offer this battery in "real" and be thrown here with everyone else in a pot, but can only thereto Amazon change.
People who buy the battery: First on the scales so. The original weighs about 57g -as mentioned-.