Good info. I've seen other tutorials on identifying fakes from before the holographic labels, it's nice to be able to update/add to that knowledge
The best way to avoid counterfeits, of course, is to buy from reputable dealers. Most of the times I've been asked the question of "is my battery real?" have been from people that bought them on ebay or similar. You can find a list of
authorized US distributors here, and a link in the sidebar there for authorized UK distributors