Before buying, I looked at the reviews, I needed a new battery because the old man did limp after just under a year. The reviews had convinced me, so I bought it. It was delivered after a day. Flight changed and he gave one hundred percent without jamming or use force in my S3Mini. Overnight loaded, my phone keeps again depending on application up to 1.5 days ago. I have now charged already determined on 15 x and can detect any deviations or faults completely. He invites to clean and I am very satisfied with my purchase.