What Causes An Alternator Not To Charge. Overcharging alternator not only increases the speed of car engines but also brighten the bulbs. 1 Cause of alternator failure High heat from excessive use.
A bad alternator will cause your battery to die quickly and it will be unable to hold a charge for as long. Some indications of these problems are dim headlights charge and alt indicators light up. Alternator problems can cause your battery lights to stay on while charging.
If you are getting more than 2 volts above base voltage most likely your alternator is over-charging the battery or the battery is faulty.
Charging a severely discharged battery can overheat the rotor and stator windings causing the insulation to degrade. Excess hydrogen enters the battery due to the faulty alternator. Oftentimes when there is an electrical problem you might assume that its an issue with the alternator but if weve established that the alternator is brand new and functioning properly then there must be another problem going on. Worn out carbon brushes or damaged alternator The most common reason why your car is not charging is actually because of a worn-out or damaged alternator.
