I have the RAV Power 10400mAh ordered which seemed to me to have the best value for money. Was delivered within 2 days, Top! Well packed and the part also looks very valuable, with the piano black of course collects fingerprints like CSI Las Vegas! And he is not exactly a lightweight. On delivery, he showed 3 of the four blue LEDs, which has served to the HTC Sensation my wife to load four times. And about as fast as in the socket! When I booted the machine itself, after 6 hours, no progress of the charge indicator could be seen! The last diode blinking remains alone to himself. So I have already put the original package deal (I always pick up until the warranty has expired). But in the morning were all diodes. Therefore seems to be in order. But a full charge then actually takes 12 -16 hours. And we all know that a new (and lithium) battery must be always empty and full. Were included 2 USB to Micro USB, 1 mini USB adapter and an adapter for charging my Samsung Galaxy 2 tablets. I'm now the next few days to make all mobile charges at home so that when it really shows something negative, I will report here. But first 5 star, buy recommendation!