I Love My Wave Y about everything! I had 2 batteries already for my old phone, because I am a very forgetful person and also very busy. I never think of it, my phone overnight, or if I'm just at home and have not much to do, to boot. This naturally leads to annoying situations. But since I can do not much against my forgetfulness, I have, as I said, gained a second battery. Weiss has brought a very good substitute to the market. I am entirely satisfied with the performance. Although it is not an original part, I had no problems regarding compatibility. Everything went flawlessly. Empty battery rausnehmen, freshly charged battery use, turn on phone and voila my Samsung 100% was again powerful! Does he have to be ever since I call probably 50 times a day (and, even worse, the Internet and the camera constantly taking in claim !!!). As far as I could not tell the difference from the original. Hopefully it stays that way. What makes me particularly confident is the low self-discharge. Overnight, several days in a row because doing hardly anything. Based on previous experience, I would order from this link on products.