981 and 12v cell phone "Quick" charger not working
 

i cannot seem to get the "quick" charger for my cellphone to work in my 981. same phone and charge taken from my Infiniti (where it works) and then i put it into the center console 12v outlet of my 981 boxster, and it will not Fast Charge my phone. any idea how i can make this work? without fast charging, when i use maps and stream via bluetooth, the phone battery discharges at and won't last for more than about 4 hours, making long distance trips quite hard. what is going on with my 12v outlets??