For several weeks this has unfortunately changed. The battery is in operation very warm and often the phone is already empty at noon, when I have taken it in the morning full of the charging station. When using (surfing etc.), the battery heats up extremely and 40% remaining battery are then consumed in 30 minutes.
Seems to be a typical anchor problem. I own anchor and a netbook battery even after the now more than a year still conjures enormous maturities. And together with the 9300 battery I also bought a 1800 mAh Anchor Battery for the GT-I9000 mobile phone my wife, who also has no weaknesses. Obviously I snatched one of the few outliers?
Supplement: A few days after I had written this review, the company reported anchor with me and exchanged the battery out without hesitation. Reason: Anchor Batteries have 18 months warranty and may not turn out kindly. I like this attitude very much and I'm pretty excited about this logically Service.