Already in the first 3 charge cycles, the battery began to swell, no longer fit in my S3 pure mini as my original battery (which I now use instead the way back). So I had the battery cover press it by force, so that bloated battery can ever provide its performance in the mobile phone. ... What quick no longer was the case then. Constantly crashes, as it would happen in case of over- / undervoltage otherwise. After a full charge to 100% capacity of a restart is not immediately dropped to 26% and after several attempts better. Thus, I had to give up the spare battery and stay with my battery manufacturers. Does continue his services although not more 2 days by holding as at the beginning. Conclusion: AZG request is made, but unfortunately rejected by end of the 3 month period. Thus, the battery ends up in the garbage.