My phone is constantly stopping and starting charging, is it faulty?

The main reason for this is usually because the SnapMount 3 is set up incorrectly and it is not receiving enough power. The SnapMount requires a minimum of 5V/2A. Please ensure you are using our included Quick Charge 3.0 car adapter. and have this plugged into the cigarette lighter rather than into a USB slot directly into your car. We include the correct adapter in the box. Usually, USB ports in a car will not give the required power output so please double-check.