Mighty Max Battery

Mighty Max Battery YT4B-BS

High-performance automotive accessories made for confident daily results

$34.98

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Why customers choose NorthTrail Auto

The Mighty Max Battery YT4B-BS is a compact, sealed 12V 2.3Ah AGM motorcycle battery engineered to deliver reliable cranking power, low maintenance, and flexible mounting for small bikes and powersports applications.

This sealed lead‑acid (SLA) absorbed glass mat (AGM) battery arrives fully charged, leak‑proof and ready to install. Designed with rugged construction and vibration resistance, it provides consistent starting performance across a wide temperature range while eliminating the need to add water or check electrolyte levels. The YT4B‑BS is a good match for small displacement motorcycles, scooters, ATVs, and other light powersports vehicles that require a compact, rechargeable battery with dependable cold‑cranking capability.

How much power and cold‑start capability does this battery provide?

The YT4B‑BS supplies 12 volts and 2.3 ampere‑hours of stored energy, with 25 cold cranking amps (CCA) available for starting in cooler conditions. While not intended for large engines, its CCA rating supports reliable starts on small motorcycles and scooters. The AGM chemistry helps deliver higher discharge rates compared with standard flooded lead‑acid cells.

  • Nominal voltage: 12 V
  • Capacity: 2.3 Ah (ampere‑hours)
  • Cold Cranking Amps (CCA): 25
  • AGM sealed construction for stable high discharge output

Can I mount this battery in different orientations and still expect durability?

Yes — the sealed AGM design permits installation in virtually any position without leaking. The battery resists shocks and vibration, making it suitable for on‑road and off‑road use where rough terrain or engine vibration is common. Its sealed, maintenance‑free build also reduces service attention compared with wet cell batteries.

  • Spill‑proof AGM construction allows flexible mounting angles
  • Vibration‑resistant case for powersports environments
  • No watering or electrolyte checks required

What are the physical size and fitting considerations I should check?

The YT4B‑BS is compact and intended for small battery bays; verify the dimensions and terminal layout against your vehicle’s battery tray before ordering. It measures 4.44 in x 1.50 in x 3.44 in, so confirm clearance for cables and any retaining hardware. Note that the battery ships without wiring harnesses or mounting brackets.

  • Dimensions: 4.44" (L) x 1.50" (W) x 3.44" (H)
  • Terminals: standard small motorcycle battery terminals (verify fit)
  • Sold without additional mounting accessories or wire harnesses

How long will this battery last and what warranty is included?

The AGM construction supports a long service life when used and charged properly, and it tolerates deep discharge recovery better than many conventional flooded cells. Lifespan depends on usage patterns, charging quality, and climate; following recommended charging practices will maximize service cycles. Mighty Max Battery backs this unit with a full one‑year warranty for added peace of mind.

  • Rechargeable design suitable for repeated charge/discharge cycles
  • Performs in both high and low ambient temperatures
  • Includes a 1‑year manufacturer warranty

Who is this for: The Mighty Max YT4B‑BS is aimed at riders and owners of small motorcycles, scooters, mopeds, and light ATVs who need a compact, maintenance‑free battery with dependable starting ability. It's also a practical replacement for older sealed batteries on personal watercraft, snowmobiles, and other small engine applications where space is limited and vibration resistance matters. If you require a small, ready‑to‑install 12V AGM battery with a one‑year warranty and flexible mounting, this model is a solid, cost‑effective option.

FAQ

Q: Is the YT4B-BS maintenance free?

A: Yes. The AGM sealed design is maintenance free—no watering or electrolyte checks required.

Q: Can I mount this battery on its side?

A: Yes. The spill‑proof AGM construction allows installation in nearly any orientation without leaking.