Does the internal resistance of shallow storage battery need to be tested regularly?

Does the internal resistance of shallow storage battery need to be tested regularly?
Batteries also have regular physical examinations like human beings, so that we can better understand the state of shallow storage batteries. The voltage, current and temperature of the storage battery are important operational parameters, but the internal condition of the battery can not be damaged.

As the most effective and most convenient performance parameter of battery, the battery internal resistance can reflect the performance index of battery life length, capacity state and so on, which can not be reflected by the operating parameters such as voltage, current, temperature and so on.

The four main failure modes of the shallow storage battery: the direct influence of the water loss, the negative plate vulcanization, the corrosion of the positive plate and the heat out of control make the capacity of the battery drop and the internal resistance rise, which is the main reason for the reduction of the capacity of the battery.

As the capacity of the battery decreases, the internal resistance of the battery will increase. The larger the capacity, the smaller the internal resistance of the battery. At the same time, with the increase of the deterioration degree of the battery, the internal resistance of the battery will also increase significantly. Therefore, there is a close relationship between the internal resistance of the storage battery and its capacity: the increase of internal resistance is an important sign of the performance degradation of the battery.

By testing the internal resistance of the battery in the battery pack, we can accurately grasp the performance state of the battery. At the same time, it is of great significance for ensuring the stability of battery supply and prolonging the service life.

Most of the batteries are connected in series, and the performance status of the battery directly affects the overall performance. At the same time, the battery in the battery pack will accelerate the damage rate of other batteries in series. Therefore, the monitoring of a single shallow storage battery is a necessary condition to ensure the capacity and service life of the battery pack.