This was a very fast purchase for my father-in-law,who was in town and his cell phone would not hold a charge and he was going to go to the cell phone dealer and buy one just like it,but only to pay 10x what I paid for this one. After all it has Sonys name on it. It was at a real bargin and I can't even remmember paying S/H? I have to say I received it very fast and it charged in no time at all and held it's charge. My Father-in-law was thrilled and went home with a new battery and quite a bit more money in his wallet too.I don't know if it was luck,but the really good thing about a purchase like this is if it for some reason is old and doesn't hold a charge or is defective in any way,just contact the seller ASAP! and let them know about what the problem is and I think in most cases the seller will ship you a new one out right away. 5 stars!!