I was long looking for a battery of 1-2 times NOT to charge the smartphone is empty. The very fact that I am often away and not always an outlet available have to charge that phone, my choice has fallen on this product. No other product can be compared with this value for money. Many batteries were expensive and are not hard to get far on the battery capacity. The smartphone can be charged fully 5-6 times. Very nice design, which one is used to from Goodstyle.