I’ve never had issues with getting through a day, and I don’t use any weird settings or anything. If you play a 3D intensive game, or use 3D maps of course it’s going to eat through the battery, but for normal usage I haven’t experienced any issues. You do probably want to get a car charger like shack1108 said if you plan on using it like a GPS.
There’s always been a segment of the American public that has generally been racist (though obviously it isn’t nearly as bad today as it used to be) towards every new wave of immigrants it receives. This isn’t really anything new, or specific to America.