Mighty Max Battery YTX24HL-BS 12V 21Ah Motorcycle Battery — 350 CCA, AGM Maintenance-Free

The Mighty Max Battery YTX24HL-BS is a sealed 12-volt, 21 Ah AGM motorcycle battery engineered for dependable starting power and maintenance-free performance.

This compact, high-rate sealed lead‑acid battery combines absorbent glass mat (AGM) technology with a rugged construction to deliver reliable cranking ability and long service life for motorcycles, ATVs, personal watercraft, and other powersports vehicles. It ships ready to install and resists spills, vibration and a wide range of temperatures. The package includes the battery and screws only; harnesses or mounting accessories are not included.

How much starting power and capacity does this battery provide?

The YTX24HL-BS offers 12 volts, 21 amp-hours of capacity and 350 cold cranking amps (CCA), giving a balance of reserve capacity and starting torque suitable for many mid‑size motorcycles and powersports machines.

• Voltage: 12 V for standard motorcycle electrical systems
• Capacity: 21 Ah for extended accessory use and reserve
• Cold Cranking Amps: 350 CCA to support reliable starts in cooler conditions
• SLA/AGM construction for consistent performance under load

Will it fit my bike and how do I install it?

Physical dimensions and terminal layout determine fitment: the battery measures 8.07 × 3.42 × 6.37 inches with the negative terminal on the left and positive on the right when viewed from the front. Installation is straightforward for compatible models but requires proper terminal matching and secure mounting.

• Dimensions: 8.07" L × 3.42" W × 6.37" H — check your battery box space
• Polarity: Negative-left, Positive-right — confirm terminal orientation before fitting
• Mounting: can be installed in any orientation; use included screws and suitable straps or brackets (not included)
• Accessories: no wiring harness or additional fasteners included — purchase separately if needed

What are the durability and maintenance features?

The YTX24HL-BS is a spill‑proof AGM battery designed to withstand shocks, vibration and a broad temperature range while remaining essentially maintenance-free. It supports repeated deep discharge recovery better than conventional flooded batteries.

• AGM sealed design prevents leaks and allows installation in varied orientations
• High discharge capability suitable for frequent starts or accessory loads
• Resilient to vibration and temperature swings common in powersports use
• Rechargeable and maintenance-free — no routine water topping required

What warranty and service should I expect?

Mighty Max Battery backs this model with a one-year limited warranty, covering manufacturing defects under normal use. For best longevity, follow recommended charging and storage guidelines and use a compatible charger when keeping the battery on float or long-term storage.

• Warranty: 1 year for manufacturing defects
• Care: use an AGM-compatible charger to maximize battery life
• Storage: keep charged and stored in a cool, dry place to reduce self-discharge
• Service: contact the seller or manufacturer for warranty support and RMA instructions

Who is this for: The Mighty Max YTX24HL-BS is ideal for riders and powersports owners who need a compact, maintenance-free battery with strong starting power and durable AGM construction. It suits mid-sized motorcycles, ATVs, UTVs and PWC applications where reliable cranking, resistance to vibration, and convenience of a sealed battery are priorities. Verify fitment by comparing dimensions and terminal orientation to your vehicle before purchase.