I read the reviews here and was a little back and forth only, but now it is clear: great part! Uglaublich cheap! My son has the BB 9900 and his replacement battery (battery pack other but the same USB connector) forget. As I gave him the things with, he stuck to it and we could separately but continue shopping with BB Messenger. Great thing, whether that is efficient, that is not important to me because, when a friend or colleague has no juice in the phone, then he gets the out of my, if only it somehow goes. here we go ... As someone here can deduct NEN point that who can understand. I lack the insight there.