The Valve Regulated Lead Acid (VRLA) Battery is a type of rechargeable battery. They are also commonly known as sealed batteries or maintenance-free batteries. How are they made? A lead acid battery is made of a number of lead acid cells wired in series in a single container.
To avoid these problems, valve regulated lead acid (VRLA) batteries prevent the movement of the electrolyte inside the container, trapping the hydrogen near the plates, making them readily available for re-combination as the battery is recharged.
A lead acid battery is made of a number of lead acid cells wired in series in a single container. Lead acid cells have two plates of lead hung in a fluid-like electrolyte solution of sulfuric acid. While in use, the battery generates power by reducing the lead plates, turning them into lead-sulfuric-oxide.
Metals used in batteries A brief explanation of the Valve Regulated Lead Acid (VRLA) Battery, also known as sealed or maintenance-free batteries, a lead–acid rechargeable battery.
Within the sealed battery, two lead plates immersed in a sulfuric acid solution facilitate a chemical reaction. One plate is coated with lead dioxide, while the other is made of spongy lead. When an external load is connected, electrons flow from the negative to the positive terminal, generating electrical energy.
VRLA batteries can be substituted in virtually any flooded lead-acid battery application (in conjunction with well-regulated charging), as well as applications where traditional flooded batteries cannot be used, because of their unique features and benefits.