Rescue for power-hungry gadgets

For a 12-hour train journey I've prepared for me and my children Entertainment: MP3 player for audio books and music, smartphones look for games and videos. While the MP3 listening in good and fully charged battery lasts so long time, the games and videos suck the battery empty in a few hours, so I got me the battery. I opted for this product, because the ratio of price, capacity (mAh) Weight and reviews seemed best to me.

In the outward journey there was in the compartment outlets - so I got the battery only once not in use - or at least, finally I've just the battery, with the appropriate adapters, while instead of 4 different chargers (see below).

On the way back then it was no power outlets in the train. The battery was still full of the outward journey, after a week of no self-discharge was still noticeable. I got the battery only then borrowed a fellow who has thus charged her empty cell phone, then it has been enough for the MP3 player and 2 cell phones, and there was a bar left. Chill the performance (at least until now) quite well, if that's true with the 5600mAh, I can not measure it.

So much for the battery. Among the connections: There are various adapters in, I have the Nokia (5800) and Samsung (S5230) successfully used and loaded a Sony mp3 player via USB cable. In addition, a 200V-USB adapter is included which is used to charge the battery, which can be used with the accompanying adapter but also to charge the device directly with an existing outlet. (The product itself bears on the packaging the CE mark, but I do not think this is true for the 220V USB Adapter - at least I've never seen a plug in this form, he makes but visually a very trustworthy impression.. )

One criticism is the manual. It's about as positive that it was decided not to produce with translation programs an incomprehensible German instructions, and safety information on the type: "Please do not heat above 200 ° C" has been omitted. But the (English and Chinese) text but should be a bit bigger. But this is a one-time offense, the operator is indeed quite simple.

So far I could not find anything really negative to the article, so full 5 points.

Addendum (07/10/2012):
The battery self-discharge is practically nil. Even after half a year in the drawer he still shows the full capacity. Sounds incredible, but it is likely that just not, flow like with any electronic device with Li-Ion battery, even minimum flows to maintain for example the built-in clock.