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AGM Battery Versus Gel Battery: Which Is Better?

Both categorized under Sealed Lead-Acid Batteries, AGM (Absorbent Glass Matt) Battery and Gel Battery are often mistaken to be the same. Both batteries possess similar traits such as having deep-cycle capabilities, non-spillable design and both can be used in different orientations. The two battery types are also known for their low self-discharge, low-maintenance and vibration-resistant characteristics. However, AGM and Gel are two distinctly different types of batteries.


Through this post, we’re comparing the two battery types in order to help you see which one suits your needs.


Similarities

The two batteries are classified as Valve Regulated Lead-Acid (VRLA) batteries. The oxygen produced on the positive plates of lead-acid batteries is absorbed by the negative plates. In turn, the negative plates produce water. This helps expel the heat from the chemical reaction produced by the electrolytes. Because of this, the user does not have to water these batteries, making them maintenance-free.


Differences

AGM batteries make use of a special glass mat made up of thin glass fibers. This is designed to absorb the electrolytes between the battery plates.


Gel batteries, on the other hand, utilize a special type of silica gel that holds electrolytes together. The thick consistency of the material allows electrons to flow freely from the plates.


Comparing the Two Battery Types

Gel batteries tend to lose power faster than AGM batteries, especially at lower temperatures. This is because of the gelled Thixotropic composition of the battery. AGM batteries work in extreme weather, making them suitable for power-hungry winter utilities such as snow-mobiles.


When it comes to Depth of Discharge (DoD), Gel batteries make use of acid better than AGM batteries. Acid protects the Gel batteries’ plates, enhancing their deep discharge applications. However, a Gel battery must be recharged correctly, or else it will suffer premature failure. A scar inside its jelly material can create packets that will corrode the plates.


AGM batteries are comparably cheaper than Gel batteries, but they present a longer life span and offer bigger bursts of amps when needed. These batteries work best in high-power usage, such as sports vehicles.


AGM Batteries outsell Gel types when it comes to durability, long life and charging. They are also less expensive and work in different weather conditions.


Gel batteries, due to their gelled composition, present less leaking percentage when compared to AGM batteries.


A gel battery, also known as a “Gel Cell”, is a VRLA (valve-regulated lead–acid ) battery, a type of Sealed Acid Battery. The technology used in making gel cells is similar to AGM batteries. However, instead of utilizing the Absorbent Glass Material that AGM batteries use, gel batteries make use of gelled electrolytes. The solidified electrolytes reduce the risk of spillage and evaporation that results in corrosion problems.


Compared to ordinary batteries, gel batteries are much lighter. This technology only uses a small amount of solidified electrolyte to keep the acid immobile. Gel batteries have longer lifespan than traditional batteries; this is due to the fact that the gelled solution can hold their charge for a longer time. This battery type is also durable and can withstand extreme ranges in temperature.

Tina Yu

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