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The complete guide to AGM  VRLA batteries. In this article, We will introduce what is AGM SLA battery?What are the difference between agm deep cycle and gel battery? What are AGM battery‘s advantages and applicable scene.

What is AGM Battery


AGM (Absorbed Glass Mat) sealed battery technology was originally invented in 1980, and developed and introduced in 1985 for military aircraft where power, weight, safety, and reliability were paramount considerations.


The Power Kingdom AGM batteries are VRSLAB (Valve Regulated Sealed Lead-Acid Battery), sometimes referred to as VRLA (Valve Regulated Lead-Acid). Because they are sealed, AGM battery are maintenance free which means you don’t need add electrolyte after the manufacturing process.


They are created in a flat, rectangular design. One feature of AGM batteries is the thin glass fibers interwoven into a mat. This makes the battery spill-proof, as the fibers containing the glass mat do not absorb the acid composition. They are almost immune to vibration.


AGM  VS  Deep Cycle

An important thing about AGM - Just because a battery is AGM does NOT make it a deep cycle battery. Those still have the advantages of AGM, but are not deep cycle. It is primarily plate thickness that makes a battery deep cycle, not whether it is flooded, gelled, or AGM.


The Power Kingdom DEEP CYCLE SERIES batteries are essentially the same construction as the other general purpose AGM batteries.




AGM and gel batteries are often considered to be one and the same. This is because they have a similar core of attributes. Both are nonspillable.


AGM Batteries are more popular than gel for the cost difference, AGM is less expensive than gel batteries AGM batteries are high quality and work at a large range of temperatures .also AGM Batteries charge very easily.


Gel batteries are called gel because they use silica (or sand) to turn the acid inside the battery into a thick liquid. This liquid does make it spill-proof, like AGM batteries, but the gel is fragile: one mistake in charging them will ruin the battery completely. Things like quick charging, high discharge, or other intense situations are all likely to cause serious damage to a gel battery, making it fail even if it's barely used. Gel batteries tend to lose power faster than AGM batteries, especially at lower temperatures.


Advantages and Applicable Scene


Here are some Advantages of AGM Batteries

  • Low internal resistance

  • Longer, efficient usage

  • Ability to survive low temperatures

  • Spill proof

  • Responsive to load

  • Water retention

  • Faster charging time compared to flooded batteries

  • Less prone to topping charge, can be stored for a longer time


AGM batteries are not the best choice for all applications - However, their safety and design features make them the battery of choice for many applications, such as:

  • Where you cannot have fumes or hydrogen, such as in poorly ventilated areas, or where fumes may cause corrosion to electronics, such as repeater and cell phone sites.

  • Where resistance to shock and vibration is important.

  • Where spilled acid from leaking, tipped, or broken batteries cannot be tolerated.

  • When installed in a location where maintenance would be difficult or expensive, such as remote communications sites.

  • Where the batteries may be subject to freezing (-40 degrees F or lower).

  • Anyplace where you need a reliable totally sealed battery for safety or environmental reasons - wheelchairs, medical standby power, inside RV's, computer room UPS systems, or in enclosed spaces in boats.



Northern Arizona Wind & Sun  <What is AGM Battery Technology?>

Ups battery center   < What is AGM?>


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