I have ordered this battery to replace the battery of my Oriignal S3 Mini. He went slowly to his knees. The battery of PolarCell I use now since 2 weeks and am a little disappointed. He need a lot longer to charge and he no longer holds. Not even taking into account that it is new and longer default should last through, as the original battery after 1.5 years. If he does not, in my judgment and experience. The battery capacity is innherlab of 8 hrs. From 100% to 30% down .... at night, lying on the bedside table in sleep mode, without display, with data connection without use. Sorry that it may not be for a new battery.