Watch out on amazon
They have a sloppy reputation for not enforcing sellers of counterfeit goods

Many expensive items worth counterfeiting are too often fakes
This included even mundane items
Batteries are absolutely faked
Sometimes the same amazon listing will ship out some real and some fake product mixed
I got some very good fakes on amazon, very usable and decent quality
If you email amazon and have proof of a fake you will get all your money back
And if for some reason they don’t want to refund you then your credit card will refund you and do a charge-back to the seller
Selling a fake is illegal so the seller has no grounds to dispute the charge back
And most of the time you get to keep the questionable fake but I have been provided return shipping for some items

Look for labels that aren’t quite right, poor English in the documentation or spelling and grammatical mistakes on fine print
-s