The AGM (Absorbent Glass Mat) battery was originally designed for military applications where high performance and durability in extreme environments is required. AGM batteries have a number of features that make them the premium choice for marine applications.
Firstly, their vibration resistance is a key strength that enables them to withstand the constant vibration often experienced in marine applications.
AGM batteries are able to withstand cycling far better than a flooded battery. Cycling is the process of discharging the battery to run your on-board electrics without the motor running, and then recharging it again either via your engine’s alternator or using a battery charger.