Talk of killing two birds with a single shot. The result is an impressive non-spillable battery that supplies more power to cars than the conventional SLAs. It contains enough electrolyte to wet the mat, thus creating enough surface area for the chemical reaction between the plates without flooding the cells with flowing electrolyte. The AGM sucks all the liquid electrolytes leaving none flowing freely, which gives people the “dry” illusion because no electrolyte flows out when they break the outer case. Due to their spongy nature, the manufacturers can tightly pack as many as possible into the cells providing more lead and more storage power in the process. The AGM battery behaves similarly, only that in this case, the manufacturers squish glass mats in between the ultra-thin lead plates. The gases escape through small holes at the top, and some batteries have valves to regulate the gas escape process.īecause they are sealed, we can use them in various terrains as long as we don’t place them upside-down. They also come with an electrolyte, usually sulfuric acid, which initiates a chemical reaction that produces electricity through the exchange of ions.Ĭharging these battery types reverses the ion exchange process while releasing small amounts of hydrogen and oxygen gases. These batteries contain negative and positive lead super-thin plates arranged into small cells inside a propylene casing. How Does an AGM Battery Work?įor better understanding, let’s first learn the internal structure of Sealed Lead Acid (SLA) batteries, also known as VRLA (Valve Regulated Lead Acid). Every confident driver needs a battery to keep the systems running longer and has a shorter charging time. This creates a need for an improved battery that can produce enough electric power to support the power consumption of the modern vehicle. The ordinary flooded lead-acid battery, although cheaper, cannot support a car alarm system for a few hours, let alone support a combination of all the mentioned functions. Ordinary lead-acid batteries have been a darling of many vehicle manufacturers because they provide strong currents in short bursts for ignition before the alternator takes over. Global Positioning Systems for route navigation.Since the first vehicle models hit the road in the 1880s, driving has changed a lot over the last couple hundred years.Įarly vehicle gadgets were cassette players, then came the stop-start technology in 1969 followed by other gadgets such as: What is an AGM Battery? AGM stands for Absorbent Glass Mat, a sealed lead acid battery quite different and advanced than the regular flooded lead-acid battery. So, what is an AGM battery, and why do they cost an arm and a leg? Why Would You Need an AGM Battery? All these tech gadgets and the engine need enough power to keep running when the car switches off.ĭespite being the most popular, the flooded battery couldn’t keep up with the increasing load and thus came the AGM battery. The automotive world has constantly evolved with technological advancements like artificial intelligence, heated seats, air conditioning, and self-tensioning seat belts.
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