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Origin of lead acid battery

A Valve Regulated Lead Acid (VRLA) battery is simply a lead acid battery in which the electrolyte has been immobilised in order to recombine hydrogen and oxygen. It has a sealed construction with pressure release valves to prevent gases from escaping…

What is a VRLA battery?

A Valve Regulated Lead Acid (VRLA) battery is simply a lead acid battery in which the electrolyte has been immobilised in order to recombine hydrogen and oxygen. It has a sealed construction with pressure release valves to prevent gases from escaping…

VRLA batteries – explained

A Valve Regulated Lead Acid (VRLA) battery differs from a vented battery in that it is sealed using a pressure relief valve which prevents the gases produced on charging from escaping. Keeping the gases in facilitates their recombination to re-form water which is lost on charging due to electrolysis. In order to ensure that the oxygen and hydrogen…

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