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This is a massive loss of confidence! Now I do not know whether I have the original battery or a counterfeit in my grade 4 ...
And that with a product at the "Ships from and sold by Amazon." Externally, one can not detect any differences in the batteries. Counterfeiting can only be determined by subtracting the films according to Golem Forum.
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On the left side the alleged forgery (NFC winding on the film and not a Samsung label on the battery.
Right well the original was sent to the smartphone (NFC winding directly to the battery and Samsung label on the battery.
I contacted customer service and they want to look into it. The contact was friendly and helpful. Let's see if I get a then originals.