what are agm batteries
AGM Battery | AGM Batteries | AGM Deep Cycle Batteries. AGM batteries are also known as Sealed Lead Acid (SLA) and uses the same method of gas recombination as the Gel battery so these two are often confused. The AGM (Absorbent Glass Mat) battery uses a very absorbent micro fiberglass material to trap the gas generated during discharge and recharge. The Gel battery uses a gelatin technology to similarly trap and recycle this gas internally thus both types are sealed, maintenance free and Non-Spillable.