Not beneficial in LG G3

Property me the charger for my LG G3 bought, unfortunately, it does not necessarily work the way I imagined it ...
I'm not sure if that is the cell phone or the charger, but in order to have a successful charging, the phone needs to be placed on the centimeter exactly but what is not so easy. Otherwise constantly comes a message that only slow loading would be possible. This message appears at least 1 time per minute, which always concerns the display. This is quite annoying. The charger is a short trial period is no longer in use, that is plug the phone to the charger for me so much more relaxed ... unfortunately.