![]() ![]() ![]() This preserves the electrolyte's proper chemical concentration, giving the battery a longer life. That's why flooded batteries require you to occasionally add distilled water to them in order to prevent them from becoming too acidic over time, which will shorten the battery's overall lifespan.īecause a VRLA battery is completely sealed, it prevents any gas from escaping, allowing it to recombine into water during the recharging process. When that happens, it's possible for a flooded battery to lose some of its water due to evaporation. During this process, the water in the electrolyte is split into hydrogen and oxygen gases. This is done through a series of chemical reactions that take place between the battery's plates and the electrolyte. So, why is that important? Lead acid batteries work by converting stored chemical energy into electrical energy. The key thing about VRLA batteries is that they're constructed with a special valve that prevents gases from escaping the battery's casing. AGM batteries are one kind of VRLA battery. You might have heard AGM batteries referred to as Valve Regulated Lead Acid batteries or VRLA for short. Are AGM Batteries the Same as Valve Regulated Lead Acid Batteries? This is what the term "absorbent glass" is referring to. It is the fiberglass material that helps enable AGM batteries to store the electrolyte in a dry state rather than in a liquid free form. In a traditional flooded battery, the electrolyte is a free-flowing liquid, but an AGM battery absorbs the electrolyte in its separators and holds it there in suspension. They still contain plates and an electrolyte, however, in an AGM battery, the plate separators are made of a special fiberglass material. For more in-depth information, read our blog entitled " How Does a Car Battery Work?" How Do I Know if My Battery is AGM?ĪGM batteries are constructed a bit differently than flooded batteries. These plates and separators are all packed inside a solid casing along with a liquid sulfuric acid called an electrolyte. Flooded batteries consist of a number of lead plates that are divided by a series of separators. Traditional flooded lead acid batteries are a fixture in vehicles such as cars, trucks, boats and RVs. What's the Difference Between an AGM and Regular Battery? We'll also be talking about deep cycle AGM batteries and what to look for in an AGM battery charger. Today, we'll be discussing how AGM batteries work, looking at the various features of AGM technology and what advantages AGM batteries have over traditional lead acid batteries. ![]() The way in which they're constructed provides AGM batteries with a higher voltage output, which allows them to support the increasing amount of technology found in modern and heavy-duty vehicles.Īre you looking for the best battery for your car, truck, RV, golf cart, boat or powersport vehicle? An AGM battery may be the answer. The wide use of AGM batteries is largely due to their unique design. AGM batteries have become increasingly popular in recent years. The term AGM battery is short for Absorbed Glass Mat. What does "AGM battery" mean? Although they have been around since the 1980s, most people don't know what AGM stands for.
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