Mighty Max Battery YTX20HL-BS 12V 20Ah Motorcycle Battery — 310 CCA AGM Sealed, Vibration-Resistant

The Mighty Max Battery YTX20HL-BS is a sealed 12V 20Ah AGM motorcycle battery delivering 310 CCA in a maintenance-free, rechargeable package built for rugged use.

This compact high-rate sealed lead acid (SLA) battery is engineered for motorcycles and powersport machines that need a reliable, high-current start and low upkeep. Its absorbed glass mat (AGM) construction provides a sealed, maintenance-free experience and the physical design tolerates vibration and varied mounting orientations, making it a versatile replacement or upgrade option.

How much starting power does this battery provide?

The YTX20HL-BS supplies 310 cold cranking amps (CCA), which gives a strong initial surge for demanding engine starts. That level of CCA helps deliver reliable ignition in colder conditions and for high-compression engines.

• 310 CCA for powerful initial starts
• 12 volts with a 20 amp-hour capacity for moderate reserve energy
• High-rate discharge suitable for performance starters and accessories

Is it durable enough for road and off-road use?

Yes — the battery is shock- and vibration-resistant and designed to operate in exposed conditions, including rain, heat, and snow. Its sealed AGM construction prevents spills and makes it resistant to environmental stress while reducing maintenance needs.

• AGM sealing prevents acid leakage and reduces corrosion risk
• Mountable in any position for flexible installations
• Robust casing absorbs vibration during off-road use

What are the physical specifications and installation details?

The YTX20HL-BS matches common YTX20-series form factors and fits many motorcycles and powersport vehicles. Note the polarity and exact case dimensions before installing to ensure proper fit and cable routing.

• Dimensions: 6.88" x 3.50" x 6.13" (L x W x H)
• Polarity: Negative terminal on left, Positive on right
• Sold with battery and mounting screws only; no harness or brackets included

How do I maintain and charge this battery?

Because it is a sealed, maintenance-free AGM battery, routine watering or acid checks are not required. Keep it charged with a compatible lead-acid/AGM charger and avoid prolonged deep discharge to preserve service life.

• Rechargeable by standard SLA/AGM-compatible chargers
• Store fully charged and top off after long periods of inactivity
• Avoid deep discharges to maximize lifespan

Who this battery is for: Riders, mechanics, and powersports enthusiasts who want a dependable, low-maintenance battery that delivers a high cold-cranking current in a compact, sealed package. It suits commuters, sportbike riders, ATVs, UTVs, and anyone replacing a YTX20-series battery who needs a robust, vibration-resistant option with flexible mounting and a one-year warranty for added peace of mind.