What is the reason why the car battery fault light is on? Why is the battery indicator light on?

The car battery can be said to be a component with a relatively high failure rate, and the car battery failure lamp mentioned today is used to separately reflect whether there is a problem with the battery. Therefore, when the battery fault light is on, there is undoubtedly an abnormality. So, what is the reason for the car battery failure light, and why the battery indicator light is on, then we will list the influencing factors.

Battery loss

The car battery light is on, most likely because the battery is losing power, especially if the car has been left useless for a long time, it is definitely a normal thing to lose power. But don't worry too much, as long as the car is started, the engine will directly drive the generator through the belt, and then the electricity sent out is rectified and stabilized to directly charge the car battery. Of course, we can also use the charger to charge, first connect the positive pole of the charger to the positive pole of the battery, and the negative pole of the charger to the negative pole of the battery, and then press the charging button to charge.

Severe vulcanization

There is also a situation that when the battery is used for a period of time, a lot of sulfide salts will naturally accumulate on the plate, which will affect the normal operation of the battery (the battery light is on), and it needs to be cleared in time to solve it. First, use the current within 5h of high current to fully charge the battery. Then, when the temperature of the liquid does not exceed 40 degrees, a discharge of 30% is carried out, so that the slight sulfide salt on the surface of the electrode plate is washed, so that it is desorbed and dissolved and converted into an active substance. Then, following this process for three or four cycles, the vulcanization of the car battery can be repaired.