A motorcycle battery is the primary power source for the starting system and various electrical components, enabling the vehicle to operate efficiently.Today, AGM (Absorbent Glass Mat) batteries are widely used due to their durability, safety, maintenance-free design, and trusted performance by leading brands such as Yuasa.
Features and Structure of an AGM Battery
1. Patented Sealed Terminals (Patented Sealed Post)
Prevent acid leakage, reduce corrosion, and extend battery life. They serve as the connection point between external devices and the battery, supporting high current flow without deformation.
2. Safety Valve / Flame Arrestor
The Safety Valve regulates internal pressure, preventing excessive buildup and reducing water loss. When pressure increases, the valve-regulated system releases excess pressure to avoid damage.
The Flame Arrestor prevents explosions caused by external sparks and internal gases during charging, while the sealing system prevents acid leakage that could corrode the motorcycle structure.
3. Thru-Partition Construction
Provides the shortest path for current flow, reducing internal resistance. This ensures high cranking power and consistent starting performance. It connects the plates in each cell, separating positive and negative terminals.
4. Heat-Sealed Case to Cover
The battery cover and container are fused together using high heat, forming a single solid unit. This prevents leakage and corrosion while enhancing strength and vibration resistance.
5. Polypropylene (PP) Cover and Container
Made from high-quality polypropylene plastic, lightweight yet strong. It is heat-resistant, impact-resistant, and does not absorb acid or oil. It also helps regulate temperature during operation, even in harsh environments.
6. Special Active Material
A specially formulated lead compound designed to improve vibration resistance, extend service life, and maintain consistent performance.
7. Special Grid Design
Manufactured using a grid casting process for superior strength. Designed to withstand high vibration and enhance electrical conductivity, ensuring strong and stable current output.
8. Special AGM Separator
High-quality glass fiber separators provide excellent electrical insulation, preventing short circuits between plates. With AGM technology, they absorb electrolyte efficiently, preventing leakage and spillage while improving internal stability and vibration resistance.
They are maintenance-free, requiring no water refilling throughout the battery’s lifespan.
