Hello, So that's quite what jespérais! After a load of 12 hours, first use a day of GPS reception is poor (Free in the countryside ..) and some photos! evening mail WIFI..bref a single charge at night for the next day! unthinkable with one year battery original battery and even well charged / discharged battery with eco software. In short the battery just fine! nickel back cover clips !, perfectly and best of all, the original rubber protection is re-utilisable..je few continue to stick it between the rev counter and the counter of my car ... All for 20th and dust postage free, my SGS2 will live a little .. Thank you for this product! Cordially
