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You can use more than 15 years, not often used during the water seal structure to prevent the leakage of the battery acid production of VRLA batteries, reached the safety and environmental protection, widely used in communication systems, power systems, UPS standby power supply, hydropower, thermal power plant, defense communications, security alarm and emergency lighting system etc..

The valve controlled sealed lead acid battery is exempt from water maintenance, which is also the origin of the valve controlled sealed lead-acid battery called non dimensional battery.

However, the meaning of "free dimension" is not to be done without any maintenance. On the contrary, in order to improve the service life of VRLA battery, there are many maintenance works waiting for us to do. The correct way to use it can only be explored in doing it.

The negative electrode capacity of the valve controlled sealed lead-acid battery is greater than that of the positive pole. The gas released from the positive pole in the later stage of the charging is resynthesized with the positive gas and does not produce hydrogen.

A new type of superfine glass fiber separator is used to accelerate the flow of oxygen released from the cathode to the negative electrode to produce water. In addition, the partition board has the function of strong adsorption, which avoids the overflow of the electrolyte.

High quality alloys are used to increase the overpotential of gas, and the release of gas is reduced relatively. The charging current of the valve controlled lead-acid battery needs to be in the range of the charging voltage, maintain the voltage at the rated value, and use the equipped charger to charge it.