I tried to find a phone battery once and found very similar looking ones with prices ranging from expensive to terrifying with everything in between. I don't trust the ones that are to cheap as I don't know how they cut the corners. I don't trust the more expensive ones because they look the same. I cant see the profit margins. I was unable to pick one. I ask a guy with a repair store. He said he always buys from the same shop and the badges look different every time.