What is an AGM Battery?
The term AGM is short for Absorbed Glass Mat, which is a specific
manufacturing process utilized in the production of sealed
lead acid batteries (SLAs). In the AGM manufacturing process,
extremely thin glass fibers are woven together to form a glass mat
separator that is placed between each lead plate. The glass mat plates
allow for the even distribution of electrolyte over the entire surface
area of its adjacent lead plate(s) due to its ability to hold acid.
This maximization of electrolyte to plate coverage enables these
batteries to far exceed the performance of conventional flooded lead
Every battery that is produced using AGM technology will fall into the
VRLA category, or valve regulated lead acid. Through the use of AGM and
GEL manufacturing processes, manufacturers are able to make a sealed
maintenance free battery. These batteries have several advantages when
compared to the typical flooded lead acid battery. The first of which
is the maintenance free nature of the battery - you will not have the
need (or the ability) to add any electrolyte to the battery. Due to the
VRLA design, the battery is recombinant and will vent less gas than
flooded batteries. These batteries can also be mounted in any position
and function without leaking any electrolyte.