On road trips, my phone provides music via a 3.5mm connection and I power it using a charger that plus into my lighter socket, the phone is plugged in via a lig

On road trips, my phone provides music via a 3.5mm connection and I power it using a charger that plus into my lighter socket, the phone is plugged in via a lightning connector. It also does navigation with the on screen map and directions spoken over the music. If it were just music it would be ok, but once you want the screen showing a map all the time you're going to run out of juice really fast.