The lead acid battery is an important part of the UPS system, the quality of the lead acid battery will directly affect the whole UPS system, there are many factors affecting the life of the lead acid battery, the following analysis of the life of the lead acid battery factors are?

Factors affecting the life of lead-acid batteries

⒈ Influence of temperature

Temperature has a great influence on the life of lead-acid batteries, and the battery life increases with the increase of temperature within a certain temperature range because the capacity increases with the increase of temperature. If the temperature is too high or too low, the battery life will decrease (high temperature leads to overcharging, low temperature leads to insufficient charging), especially if the temperature is too high, the impact on the battery life is particularly obvious. Generally speaking, the ambient temperature should be controlled at about 25℃.

⒉ depth of discharge

The discharge depth also has a great influence on the service life of lead-acid battery. Discharge depth is used in the process of discharge to what extent starts to stop, 100% depth refers to the release of the full capacity. The deeper the battery discharge is, the less times it will be used. Therefore, avoid deep discharge when using the battery. Low current discharge is easy to cause deep discharge.

⒊ Floating charging voltage

As the UPS battery works in standby mode, the mains power is normally charged and discharged only when the power is cut off. In order to prolong the service life of lead-acid battery, it is necessary to set the floating charging voltage reasonably. If the floating charging voltage is too low, it will lead to insufficient charging and irreversible sulfation of the negative electrode of the battery. If the floating charging pressure is too high, the water loss and the corrosion of the positive plate will be accelerated.

4.It has a charge current.

The battery charge and discharge current is generally expressed as C. The actual value of C is related to the battery capacity. For example, for a 100AH battery, C = 100A. Generally speaking, the best charging current of lead-acid maintenance-free battery is about 0.1C. Too much or too little charging current will affect the service life of the battery.

⒌ sulfuric acid electrolyte purity

The influence of sulfuric acid electrolyte purity sulfuric acid electrolyte is not pure, will cause serious self-discharge of lead-acid battery and accelerate the corrosion of separator, plate, resulting in capacity decline and shortened life.

6. Maintenance is not in place

After the battery is used for a period of time, you need to maintain the battery periodically. For example, check whether the appearance of the battery is abnormal and check whether the voltage of each battery is equal. If there is no power failure for a long time, the battery will always be in the state of charging, which will make the battery activity worse. Therefore, the UPS needs to perform regular discharge tests to keep the battery active, even if there is no power outage. Another point is easy to be ignored, that is, lead-acid battery water maintenance work, and the lack of water batteries will increase the concentration of sulfuric acid, leading to accelerated corrosion of battery parts, battery capacity reduction, crystallization, resulting in power running.

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