Eben "for emergencies"

Property me the part buy, so you can recharge your mobile phone even in emergency situations when no power outlet is just within reach. There is also well suited you are for example great outdoors and all of a sudden the phone battery is empty. However, there are two disadvantages: 1.The external battery discharges without usage quite quickly. Charge up once and then off, until you might want to take time in the drawer it is therefore not advisable ... always a couple of hours before going to charge it again out of the house. 2.also when the charging indicator shows full 4 lamp fails the part to fully charge my smartphone, approximately 70% was over. But for use "in an emergency", it is sufficient for flat and for the price a good solution.