Filling VRLA cells with H2SO4 solution

Filling VRLA cells with H2SO4 solution 

When VRLA batteries are container-formed, filling of the cells with H2SO4 solution is a delicate process, especially when using gelled electrolyte. Since the plate group is under compression, the efficacy of the filling process depends on the following parameters. 

The most widely used filling techniques include the following. 

The basic criteria for selecting an appropriate method of electrolyte filling 

After the reactions of paste sulfation start, plates that have been partially carbonated during the paste preparation, and especially during the plate-curing process, release CO2. 

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Filling VRLA cells with H2SO4 solution... 

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