Stick around if you want to learn how the wipers work and clean the rain off your safety glass windshield! The electric wiper wires directly on the battery, and therefore, a lot of them include a switch that prevents battery leaks. Thanks to the transmission parts, the electric wiper is powered through the motor and allows the blades to go back and forth. Besides the electric motor, there are also a few other essential parts such as arms and blades. The blades are responsible for removing snow, debris, and heavy rain from the safety glass windshield and on the hard-top cab enclosure. If you want an absolute noise-less operation, I suggest you purchase a replacement blade model with a rubber coating that is super gentle to the glass and therefore does not create a lot of noise.