This is exactly what I needed! I have a pump that I can use to inflate everything from air mattresses to car tires, and it only plugs into my car's cigarette lighter socket. Now I can take the pump to my house to inflate air mattresses when uninvited guests don't want to leave at the end of the night, or to the garage to inflate a basketball or football when my friends forget their age and want to roll over. in my entryway. This GPS navigator that only charges from the car cigarette lighter - no problem if tramps steal it from the car overnight as I charge it in the kitchen. Are you missing a phone charger because you bought an iPhone that thinks it's special and needs a separate charger? When you're done with that, just take your car charger to the kitchen and refer to the vagrant and GPS comments. Brill AC to DC adapter is amazing!