Very Good! However, faults and bad product description

Thank it's so ... you go somewhere and for some reason the phone is empty, even though you need it at a later date.
With this small handy battery you have this problem no longer (as often).
Cable in the battery and the phone, "ON" and you will load the phone.
My mobile phone (HTC One V) can be so loose 3-5 full charging time.
Basically one knows how the piece works. Micro-USB = Charging, USB 2.0 = Cell (etc.) load.
All current (except Lightning from Apple) and not as current bushings have an adapter.
The blue LED's show the most clearly understood what happened, for example, grade 3 circuits 75% full loading: 2 LEDs light up, the 3rd flashing = it invites grade of 50% to 75%.
However, sometimes get strange flashes that I can not interpret, and in the description of anything. Would be nice if they had more information.
Furthermore, I did not know how to turn the LED.
Sometimes the battery is not charging and flashing funny, or I'll charge it overnight and it is still empty.
PS: Upon overnight charging, be sure the blue circle, it flashing and otherwise the whole night!