Mainstream MSX20HL Replacement Motorcycle Battery - Compatible with MSX20HL Upgrade your ride with the Mainstream MSX20HL replacement battery built for compatibility, dependable performance, and rock-solid reliability. This AGM maintenance-free battery delivers the fast cranking power motorcycle owners expect while removing the hassle of acid filling and routine topping-off. If you want a high-performance battery that starts consistently in a variety of conditions and a long-lasting battery that won’t let you down on the road, the Mainstream MSX20HL is engineered to meet those demands. Key Specifications Maintenance-Free Design Spillproof and Leakproof Design U.L. Recognized and CE Certified Absorbed Glass Mat (AGM) Design Valve Regulated Vent System Extreme Freeze, Heat and Vibration Resistance Superior Starting Power and Deep Cycle Capacity Brand New, Factory Fresh 6 Month Warranty Voltage: 12 Volts Capacity: 18 Ah Terminal Type: Nut & Bolt Brand: Mainstream Distributor/Packaged By: SigmasTek Model: MSX20HL Benefits The Mainstream MSX20HL replacement battery offers a range of real-world benefits for motorcycle owners and technicians. Its AGM maintenance-free design ensures no messy acid handling or regular water additions, making it an ideal high-performance battery for riders who demand convenience and reliability. The spillproof, leakproof construction and valve regulated vent system protect against common failures and make installation and transport safer. Built to resist extreme freeze, heat, and vibration, this battery is engineered for durability on paved streets, off-road trails, and in-season storage. The superior starting power and strong deep cycle capacity mean rapid starts and the ability to handle accessory loads — perfect for models that demand high-rate discharge over short bursts. As a long-lasting battery option, the MSX20HL extends service intervals and reduces lifetime cost of ownership. Typical applications include motorcycles, sport bikes, cruisers, custom builds, and other powersport vehicles requiring a robust 12V solution. It also performs well for secondary uses such as auxiliary power in small mobile systems or as a replacement for similar spec power requirements. Ready to replace your old battery? Buy your Mainstream MSX20HL replacement battery today and enjoy the confidence of superior starting power, maintenance-free convenience, and an industry-quality long life battery — all backed by our 6 month warranty. Order now to get a dependable, high-performance battery shipped quickly.