Mighty Max Battery YTX5L-BS 12V 4Ah Motorcycle Battery — 80 CCA AGM, Maintenance-Free, Vibration-Resistant

The Mighty Max Battery YTX5L-BS is a sealed 12‑volt, 4Ah AGM motorcycle battery delivering 80 CCA in a maintenance‑free, ready‑to‑install package.

This compact sealed lead‑acid (SLA) absorbed glass mat (AGM) battery arrives precharged and requires no topping up, making it a practical swap for ATVs, motorcycles, jet skis, snowmobiles and other powersports machines. Built with vibration resistance and the ability to be mounted in multiple orientations, the YTX5L‑BS is engineered for the demands of small engines and seasonal vehicles where reliable starting power and long shelf life matter.

How does this battery perform in cold starts and daily use?

The YTX5L‑BS provides 80 cold cranking amps (CCA), which helps deliver a strong ignition burst for small-displacement engines, even in cooler conditions. Its AGM construction supports higher discharge rates than conventional flooded lead‑acid types, aiding dependable starts during repeated use.

• 80 CCA specified for reliable ignition torque
• AGM design allows higher discharge and faster recovery
• Maintains performance across a wide temperature range

What are the physical size and installation details I need to know?

The battery measures 4.40 × 2.75 × 4.25 inches and has negative polarity on the left, positive on the right—important for fit and cable routing in tight battery compartments. It ships with terminal screws only; no harness or mounting brackets are included, so double‑check your vehicle’s clamp or strap requirements before purchase.

• Compact footprint fits many powersports battery trays
• Polarity: negative left, positive right—confirm before installing
• Includes battery and terminal screws; extra hardware sold separately

How durable and maintenance‑free is this AGM battery?

As a sealed AGM unit, the YTX5L‑BS is spill‑proof and does not require fluid checks or regular maintenance. Its internal glass mat absorbs electrolyte, which reduces leakage risk, improves resistance to shocks and vibration, and enables safe mounting in non‑upright positions.

• Sealed design eliminates the need to add water
• Resists vibration and can be mounted in various orientations
• AGM absorbs electrolyte for safer handling and transport

What warranty and lifecycle expectations come with the battery?

The product includes a one‑year warranty that covers manufacturing defects and early failures under normal use. While lifespan depends on charging habits, storage conditions and operating temperature, regular charging and avoiding deep discharge will maximize service life.

• One‑year limited warranty from the manufacturer
• Rechargeable and suitable for seasonal storage with proper charging
• Longer life with routine maintenance charging and correct storage

Who is this for? Owners of small powersports vehicles—such as motorcycles, ATVs, personal watercraft and snowmobiles—who need a compact, maintenance‑free replacement battery that offers dependable starting power and flexible installation. It’s also a good choice for riders and hobbyists who prefer sealed AGM technology for spill protection, vibration resistance and low upkeep during off‑season storage.