An AGM battery, commonly used in ATVs and motorcycles, is a type of sealed battery with a fiberglass mat sandwiched between the battery's plates to hold the electrolyte. AGM stands for "absorbed glass mat" in reference to the fiberglass sheet.
AGM batteries stand up to lots of movement and a rough environment, which makes them ideal for off-road vehicles. These batteries are also a first choice in weather and ice-monitoring stations in harsh environments. Because the fiberglass mat keeps the battery from leaking if it is damaged, AGM batteries are common in electric scooters and wheelchairs that are frequently used indoors. Additional advantages of AGM batteries include their ability to operate in any position and function properly without ventilation.