Absorbed Glass Mat or AGM batteries are designed to eliminate water loss and are optimized to run strong without upkeep. Where long-term storage usually means the death of lesser batteries, this powerful AGM battery will run strong when needed, undeterred by infrequent use. This proves especially compelling for vehicles where acid leaks could arise such as ATVs, watercraft, and motorcycles. The GYZ series features the highest CCA provided by Yuasa for motorcycles and ATVs, more amp hours so you can add almost all of the LED accessories you could want, heavy-duty flush terminals that allow multiple connections to the front and top of GYZ32HL, GYZ20HL, GYZ20H models, and built-in brass nuts that provide 50% better conductivity than stainless steel on GYZ32HL, GYZ20H, GYZ20HL, GYZ16HL models. These batteries come factory-activated, meaning the high-gravity acid is already filled, sealed, and charged in the factory before making it to your door.