A really useful and compact charger.

This comment was originally written in English so I apologize for any Google Translate jokes.
How many times the power fail on your phone just when you need a torch, want to take a picture or email? Yep, annoyingly often. This small power supply is an ideal option for emergency backup power. At approximately 5 mm thick and larger than a standard credit card, it is much too big for a standard wallet card slot, but will still sitting comfortably in another large wallet pocket, man-bag or purse. Note that there is no USB cable included micro-USB charging.
The output power seems to be about the same as the supplied AC charger as my Android phone it loads the phone battery 3000mAh 50% at the same time that the sector and the fully charged battery has sufficient power to charge the phone 20% at full load. The cable for the integrated micro-USB connector is a little short, but it is a very tidy little design and the lack of length is not really a problem because the power supply is built in the phone when it is connected. It is, however, a bit annoying if you want to use the phone while connected. Once connected to the phone, charging begins automatically.
The LED on the device indicates the battery status. It is red while charging (which takes a couple of hours), blue when fully charged and blue when connected to the phone. There is also a handy lightning adapter to attach the battery to a I-Phone, etc. that I am sorry but the next time I work with the boss, I will test on his and update this review accordingly.
This is a small backup power supply very useful and will live in my very French man bag from now. Thank you for good people to Gmyle for a free item in exchange for an honest review.