Why I chose this supplier rather than another? Because on the descriptive picture, this battery is homologuee Samsung. The one that I have received did not: it does not have the statutory reference to the date of manufacture, the photo of the seller we noted a more recent date as its competitors, namely the site and check the date of the amazon 2013.02.28 therefore newest manufacturing, while other vendors indicate 2012, La BATTERY CONTAINS NO DATE RECEIVED, so I doubt the seriousness and compliance that can have very dangerous consequences for man and machine. Despite tt, I proceed to full discharge and recharge cycles 2 times and will use m holding back, it s s avere defect or endangered, and I will return my face against the seller ds as part of the compliance with rules and the safety of perssonnes Case to follow For mmt I can not recommend this purchase