Southampton Auto Repair

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Tag Archives: Car Battery

Alternator, what does it do? How to tell if yours is bad?

So you are unlucky to find out your car didn't start. After having the road service come and getting your car to the repair shop you find out that the Alternator is bad. But what does the Alternator have to do with the car starting anyway? The alternator is an imperative component to the operation of your vehicle. Think of the alternator as the automotive equivalent of that little white box that your cell plugs into…… Lets start off with what an alternator does for you. The basic function of an alternator is to take mechanical energy (from your running engine) and turn that into Alternating Current Electrical Energy (to power all of the electronics). The mechanical energy is transferred to the alternator through a drive belt. This drive belt is connected to a rotor through a pulley. The rotation of this rotor within a stator produces Alternating Current Electricity. You may remember from high School science that alternating current (AC) is what is typically used in homes ... read more