The obvious advantage of wireless charging is the ability to place electronics on a wireless charger device, rather than take a cell phone charger, laptop charger, or other type of charger everywhere in case the batteries run out of charge. Another less known benefit of wireless charging is that such chargers can be placed near water when necessary. This is because all the parts are enclosed, with no wires sticking out, so some electric razors or toothbrushes come with wireless chargers for the sake of safety. Additionally, the majority of wireless chargers can sense how much power each type of electronic device needs, so batteries are not typically overcharged.