Mighty Max Battery YTX24HL-BS – 12V 21Ah, 350 CCA SLA AGM Motorcycle Battery

Overview

The Mighty Max Battery YTX24HL-BS is a compact 12 volt battery designed to deliver dependable power with minimal maintenance. With a capacity of 21 amp-hours and a 350 cold-cranking-amp rating, it provides solid starting performance and steady electrical support for a range of riding needs.

Built as a sealed lead-acid SLA AGM design, this unit is spill-proof and engineered for longevity. It handles high discharge rates and a wide operating temperature range, while offering reliable recovery from deep discharge to help maintain usable capacity across seasons.

Key highlights

• 12V 21Ah capacity for reliable starts and steady power
• 350 CCA rating supports dependable starts in cooler conditions
• SLA AGM spill-proof construction with long service life
• Mounting in any position with resistance to shocks and vibration
• Maintenance-free operation with no required water topping
• Wide operating temperatures and deep-discharge recovery capabilities
• Includes screws; no wire harness or mounting accessories included
• Full one-year warranty for peace of mind

Design and fitment details

Dimensions measure 8.07 inches long, 3.42 inches wide, and 6.37 inches tall. Polarity is negative on the left and positive on the right. This listing covers the battery and screws only, with no harness or mounting hardware included. The rugged case is built to endure regular vibration and commute-ready riding conditions.

Real-world use and benefits

Riders who rely on consistent starts and dependable electrical support may appreciate the maintenance-free nature of this battery. Its compact size fits common motorcycle trays, while its strong cold-cranking capability helps on chilly mornings. The ability to mount in various orientations adds installation flexibility for different bike configurations, and the spill-proof design contributes to safe, worry-free use on and off the road.

In everyday scenarios, this battery can reduce downtime between rides, support essential accessories, and deliver steady performance across seasons. While not a guaranteed outcome, users often notice more consistent starting power and less upkeep compared with non-maintenance-free options.