Who knows the problem, you are traveling and suddenly the smartphone or tablet battery is empty. This is why I was looking for a Power Bank to the move when no power outlet is available, to recharge my device. When searching, I came across the V7 Power Bank, which I then ordered the same. The handling is super easy. The Power Bank can be recharged via USB port or with a conventional smartphone charger. The capacity is sufficient for about 4 charges, and compatibility is also good. I have therefore a Galaxy Nexus, S5, S3 mini, iPad 2 and iPhone 5 can charge. The charge is about twice as fast as the standard power supply, so my S5 was fully charged in about an hour. When charging, there were the first 10 minutes an unpleasant continuous beep, who had then laid. The function has the not impaired.
