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

This compact, high-rate sealed lead acid (SLA) battery is engineered for motorcycles and similar powersport machines that need reliable starting power, deep-discharge recovery and resistance to shocks and vibration. Its absorbent glass mat (AGM) construction makes it spill-proof and mountable in any orientation, while the 21 amp-hour capacity balances energy storage with a lightweight footprint for tighter engine bays.

How much starting power and runtime does this battery provide?

The YTX24HL-BS offers 350 cold cranking amps (CCA) for dependable starts in a range of temperatures and a nominal 21 amp-hour capacity for auxiliary loads and short standby use. It’s intended for repeated starting cycles and moderate accessory draw rather than long-term deep-cycle service.

• 350 CCA for reliable cold starts
• 21 AH capacity for lights, electronics, and short rides
• High discharge rate suited to quick starts and regenerating charge

Can I install it in any position and how does it handle vibration?

Yes — the sealed AGM construction allows installation in multiple orientations without leakage, and the battery is built to resist shocks and vibration common to motorcycles. That makes it a good fit for off-road, street, and custom applications where movement is unavoidable.

• AGM technology prevents spills and allows flexible mounting
• Rugged internal design resists vibration and impacts
• Rechargeable and suitable for frequent start-stop cycles

What are the physical dimensions and terminal layout I need to know?

The YTX24HL-BS measures 8.07" x 3.42" x 6.37" and has negative terminal on the left, positive on the right when viewed from the front. The listing includes the battery and mounting screws only; no wiring harness or additional mounting hardware is supplied.

• Overall size: 8.07 x 3.42 x 6.37 inches
• Polarity: negative on left, positive on right (front-facing)
• Includes the battery and terminal screws; add harness or bracket if required

What maintenance and warranty support comes with this battery?

The battery is maintenance-free thanks to its sealed AGM design, eliminating the need to check fluid levels or add water. Mighty Max Battery backs the unit with a one-year warranty covering manufacturing defects, so you have factory support for the first 12 months of use.

• Maintenance-free: no watering or routine acid checks
• Sealed AGMs reduce corrosion and terminal upkeep
• Full one-year manufacturer warranty for peace of mind

Who is this for? The Mighty Max YTX24HL-BS suits motorcyclists, powersports enthusiasts and small-vehicle owners who need a compact, rechargeable battery with strong cold-start capability and solid resistance to vibration and orientation constraints. It’s a practical choice when you want reliable starting power with spill-proof convenience and a one-year warranty, but if your application requires long continuous deep-cycle performance or included mounting accessories, consider pairing this battery with an appropriate charger and mounting kit.