AGM Battery refers to one type of VRLA battery with AGM separator.
It is maintenance-free, it is safe, and has very low internal resistance making them particularly suitable for high current discharge applications such as for inverters and other devices.
Synertac patented AGM separators are added with a few stable thermoplastic fibers to greatly improve tensile and puncture strength, to prevent the possible short-circuit between the plates.
It significantly reduced the possibility of battery defects.