Big doubt on the authenticity of the battery: not the same as the original reference, battery delivered in single blister (original battery Samsung normally delivered in a box with instructions) and no information ... Seems more discharge fast enough ... + Catastrophic delivery scheduled delivery and completed on 26/12 relay, but not one that had been requested, introduced myself 3 times at this famous relay before intercepting someone to remove my package dated 30/12 . NEVER