The device looks quite good and can be found due to the color everyone's charger and can therefore not be confused with other schwrzen chargers, That it was already. My Nokia Lumia 820 should be charged with it. The first thing I noticed when coupled with the 820, the 820 reacted very slowly with the signs (1 - 2 sec. Longer than the original charger) that it is loaded. I have it drangelassen one night at 820 and morning shows me the status on 820 also indicates that the battery was full. Error, because the battery lasted only 1/2 day and then the battery was completely empty, even though I had not used the 820 as usual. I tried the out again with the same result. I keep the charger anyway, because I now have to charge it to work and use it in case I forget my 820 times at night. At work it carries out its emergency and then I do not need the 820 to the PC. to couple. Result: lower price but corresponding poor function, for the price I do not make myself the trouble of exchanging!