More and more manufacturers of cordless tools rely on brushless DC motors. These motors offer higher efficiency, as well as low maintenance, and extend the life of the equipment. They also offer more mileage per charge. Less warmth is lost due to the high efficiency, which allows the devices to stay cool. The intelligent, integrated electronics turn the device off if the motor is overloaded. Due to the small size of the BLDC motors, it is possible to construct smaller power tools.