What are the advantages of AGM VRLA batteries?

Views: 0     Author: Site Editor     Publish Time: 2021-10-29      Origin: Site

Lead acid battery has a history of more than one hundred years, and has long occupied a dominant position in the field of secondary batteries. With the continuous development of science and technology and the development of the application field. The traditional lead-acid battery can no longer meet the requirements of all-round work without maintenance, small self discharge, long life, high specific energy, safe and reliable use, no acid mist and so on. In this context, the AGM VRLA battery has a strong development momentum and become a new generation of lead-acid batteries.


AGM VRLA Batteries



Here is the content list:

What is the working principle of the AGM VRLA battery?

What are the main parameters of AGM VRLA batteries?

What are the advantages of AGM VRLA batteries?



What is the working principle of the AGM VRLA battery?

The working principle of the AGM VRLA battery is not much different from that of a traditional lead-acid battery. The positive active material is lead dioxide, the negative active material is sponge metal lead, and the electrolyte is dilute sulfuric acid. The design principle of VRLA batteries is to inject the required amount of electrolyte into the plates and separators without free electrolyte. The ability of absorbing oxygen is improved by the humidity characteristic of the negative electrode. In order to prevent the reduction of electrolyte, the battery is sealed, so the VRLA battery is also called lean battery. AGM VRLA battery has no water loss in the charging process because of its unique internal oxygen circulation reaction mechanism, which makes it achieve the purpose of no water.



What are the main parameters of AGM VRLA batteries?

The main parameters of AGM VRLA batteries are set as floating charge voltage, average charge voltage, charge current limiting value and discharge ending voltage. VRLA battery is in floating charging state most of the time, and constant voltage charging is adopted. When determining the floating charge voltage value of sealed lead-acid battery, the basic principle should be that the floating charge current can compensate the loss of battery self discharge, and after a short period of shallow discharge, the floating charge energy can make up its capacity for a period of time, so that the battery can be fully charged for a long time. However, when the floating charge voltage of the battery is low or the battery needs to be recharged after discharge or the capacity of the battery pack is insufficient, it is necessary to equalize the charge of the battery pack to restore its necessary capacity. The voltage of the equalized charge is called equalizing charge voltage. Appropriate equalizing charge voltage and frequency are the basis to ensure the extension of the service life of the battery. When the battery is charging, in order to protect the battery, the charging current needs to be limited, so the charging current limit value is set. And in order to protect the battery, the battery needs to set the lowest discharge voltage, that is, the termination voltage.



What are the advantages of AGM VRLA batteries?

AGM VRLA battery has the following advantages.

1. There is no need to add water during maintenance.

2. High current discharge performance is excellent, especially impulse discharge performance.

3. The self discharge current is small, and the self discharge rate is less than 2% per month at 25 ℃, which is about 1 / 5 ~ 1 / 4 of other lead-acid batteries.

4. No leakage, no acid mist, no corrosion of equipment, no injury to people, no pollution to the environment.

5. Long battery life, 25 ℃ floating charge state use, battery life up to 10 ~ 15 years.

6. Compact structure, good sealing performance, can be installed with the equipment in the same room, vertical or horizontal installation, small floor area, good seismic performance.

7. There is no memory effect of Ni Cd battery.


AGM VRLA battery has the advantages of stable performance, reliability and small maintenance workload, which is loved by designers and operators. However, VRLA battery is sensitive to temperature, overcharge and undercharge are not allowed, charging and discharging requirements are strict, charging device with good performance is required, improper use and maintenance will seriously shorten the service life of the battery.


With the progress of technology and industry, the AGM VRLA battery will have a broader development space. Champion Power Technology Co., Ltd. regards creation as the core of the company and is committed to ensuring product quality through a perfect attitude and advanced technology. If you are engaged in the AGM VRLA battery industry, you can consider our cost-effective products.


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