In relation to the battery performance a "small" miracles

I bought me this battery pack originally for the holidays.
For the flight my tablet probably needs a little more power and at the beach or pool Tablet and smartphone ready to energize.
Test, I've almost coaxed the whole capacity. Each two mounts for my smartphone and my Tablet PC (both Samsung). Then two complete recharges for both MP3 player (both Sony).
The Powerpack was then not quite empty, but only one of four LEDs as remaining capacity at.
What pleasantly surprised me that even the MP3 player loaded.
Sony has here so its peculiarities and can plug the charger from Sony are not charging any of the MP3 player. With the battery pack that works without problems.

Thus the first test was passed and from my side there is a strong buy recommendation.