AGM Batteries

AGM batteries, short for Absorbent Glass Mat batteries, have become indispensable in various applications due to their advanced technology and numerous benefits. AGM batteries utilize Absorbent Glass Mat technology, where the electrolyte is absorbed into a glass mat separator, providing several advantages over traditional batteries. 

But what does absorbent glass mat (AGM) actually mean? How does it improve the battery’s performance relative to standard lead-acid batteries?

Let’s review some basics of SLA (Sealed Lead Acid) battery construction. All SLA batteries consist of lead plates (positive and negative) and an electrolyte, which are then arranged into “cells” and placed into a battery case. Some of these batteries also have valve regulation that allows the small amounts of gas that occurs during the recombination process to escape during charging. Although these batteries allow gas to escape, they are spill-proof batteries (sometimes called valve-regulated lead acid, or VRLA) and can be safely operated in almost any position (the only limitation is that they are not recommended for use upside down). Because they are sealed, there is no need to add electrolyte after the manufacturing process, and any gas produced enters the recombination cycle.