For my old grade 1 I needed a new battery. The anchor battery with large capacity promised a great value for money. Delivery arrived quickly and packaged well with me. Phone, new battery pure and first fully charged. After loaded indicator on touch battery, I took it out of the net. Overnight switched looked left and morning. Charge should have declined more than 10%. Instead, the cell phone was off. No display I had to restart it. Very turned like I thought, the capacity should be already used. No, after turning on the charge stood at 82%. Well, once again fully charged. Then taken on trips. Move a two phone calls and suddenly again. This time is not turned on but immediately connected charging cable. After plugging the display came on and the staff showed me the state of charge. Already a peculiar behavior with this battery. I was about to call the hotline at anchor, but gave the battery still chanche. Under Settings Note Battery condition I could see that the phone was in the meantime when not in use for a short time from. I have the battery loaded three times full and then after 5 days of despair and the idea of the return of the battery is working properly. I have the anchor battery now 3 weeks in phone and it sees little use slightly more than 2 days without interruption. With greater use, it keeps well over 20 hours. Where now were the difficulties at the start, is unknown to me. Perhaps the battery up to 10 times a needs together following charge, and then to work properly. Without the initial problems I could also give 5 stars.