Valve Regulated Lead Acid (VRLA) Batteries, also called assealed lead-acid battery, is a kind of rechargeable lead acid batterycharacterized by a low level of electrolytes absorbed into a metallicplate separator. (VRLA) batteries are used as a main storage energydue to its unique properties such as low maintenance cost, safetyprofile, elimination of gassing, and high power density. Valveregulated lead acid (VRLA) batteries are also used for powerapplications that depend on cells, including portable electricaldevices and other applications that require large-scale, low-costpower storage and off-grid power systems.
Thereas two types of ValveRegulated Lead Acid (VRLA) Batteries,such as the Gelled Electrolyte (Gel) and Absorbed Glass Mat (AGM).VRLA batteries always include a safety pressure relief valve. TheVRLA cannot spill its electrolyte if it is inverted as opposed tovented (also called flooded) batteries. The VRLA, including AGM andGel battery designs, can be substituted in virtually any floodedlead-acid battery application in conjunction with well-regulatedcharging. Valve regulated lead acid (VRLA) batteries use a one-way,pressure-relief valve system to achieve a recombinant technology.
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