Same Day Disptach. Free Shipping via Aus Post

Rapid Delivery Times (1-5 Business Days)

  • YT4B-BS YUASA MOTORCYCLE BATTERY (12V- 2.3AH)
1 1

YT4B-BS Yuasa Motorcycle Battery

YT4B-BS Yuasa Motorcycle Battery

$99.90 AUD
$99.90 AUD
Sale Sold out

Technical Specifications

Specification Details
Model YT4B-BS
Voltage 12V
Capacity 40 CCA | 2.3 Ah
Dimensions (LWH) 114 x 39 x 86.5 mm (Total Height: 86.5 mm)
Weight 1.00 kg
Terminal Type M12

The YT4B-BS Maintenance Free AGM Battery is engineered as an ultra-compact, lightweight power solution tailored for modern high-performance motorcycles, scooters, and minor powersport applications. Built to withstand punishing Australian riding conditions, this advanced Absorbed Glass Mat (AGM) battery delivers dependable starting torque out of a highly optimised micro footprint. Its factory-sealed casing completely minimises internal fluid evaporation, protecting your engine chassis from corrosive spills while providing absolute driving convenience with an entirely maintenance-free build.

Perfect for drivers who demand:

  • ✓ Up to 30% more cranking amps from a highly streamlined, space-conscious layout
  • ✓ Superior vibration armour built to handle continuous road bumps and track corrugations
  • ✓ A premium spill-proof design that operates reliably across versatile multi-angle positions

Key Features & Benefits

Advanced Radial Plate Design

  • • Specialist internal grid layouts deliver up to 30% more cranking power than standard alternatives
  • • Extra internal battery plates expand active surface area to ensure prompt engine turn-overs
  • • Optimises overall product calibre and electrical delivery out of a highly compact centre

Sealed Maintenance-Free Cover

  • • Fully sealed architecture successfully restricts internal vapour loss and fluid evaporation
  • • True "install and forget" convenience completely avoids the need for electrolyte water top-ups
  • • Spill-proof design ensures your vehicle bodywork and paint remain entirely protected from leaks

Vibration & Impact Armour

  • • High puncture-resistant AGM separators smoothly absorb continuous trail shock hazards
  • • Heavy-duty case layout guards active materials from shedding under high engine vibrations
  • • Sustains reliable mechanical and electrical structural stamina throughout a long working life

Sulphation Retardant Technology

  • • Premium chemical formula actively helps curb plate damage during extended seasonal downtime
  • • Retards crystal build-up to sustain stable voltage retention when left idle in storage
  • • Quickens power recovery times when connected to compatible automated smart chargers

Advantages & Considerations

Advantages

  • ✓ Generous 24-month local warranty coverage for ultimate consumer protection
  • ✓ Featherweight 1.00 kg profile avoids adding unnecessary mass to small chassis
  • ✓ Advanced anti-sulphation layout significantly optimises off-season storage durability
  • ✓ Absorbed Glass Mat structure completely avoids standard fluid leakage risks

Considerations

  • • Compact 2.3 Ah capacity is tailored for starting compact engines, not auxiliary loads
  • • Requires a dedicated smart AGM maintenance charger (such as the CC6121.2) to maintain health
  • • Physical footprint is extremely slim (39 mm width); verify battery tray clearances before purchase

Frequently Asked Questions

What is the lifespan of this battery?

Under normal powersport use routines, this premium AGM battery typically operates reliably for 3 to 5 years. Total lifecycle parameters depend heavily on regular vehicle alternator upkeep, seasonal use intervals, and ambient temperatures.

Is this battery maintenance-free?

Yes, this product features a fully Sealed Maintenance-Free (SMF) Absorbed Glass Mat setup. The internal electrolyte liquid is permanently suspended inside specialised mat sheets, so you never have to check levels or top up fluid.

What vehicles/applications is this battery compatible with?

This model is engineered for lightweight motorcycles, premium scooters, and compact ATVs requiring a 12V system matching the YT4B-BS casing layout and standard M12 terminal configuration.

How should I store this battery during the off-season?

Store the battery inside a cool, dry spot away from direct weather extremes. While it incorporates a built-in sulphation retardant, it is best practice to charge the battery fully beforehand and plug in the CC6121.2 smart maintenance charger to preserve cell condition.

What is covered under the warranty?

This powersport product features a 24-month local consumer warranty. It protects against unforeseen material faults or construction assembly defects under standard operational habits, subject to the full terms outlined in the attached statement.

Battery Compatibility Guide

Direct Replacement Models

YT4B-BS
YT4B-4
CT4B-BS
View full details

Why choose Battery Empire?

  • Expert Knowledge

    Battery Empire's specialised team has extensive expertise in batteries.

  • Quality Guarantee

    Premium products with full warranty coverage and 60-day free returns.

  • Fast Shipping

    Same-day dispatch with 1-5 business-day delivery through Australia Post.

  • Local Support

    Battery Empire is Australian-owned with friendly, dedicated customer support.

    Contact us