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SigmasTek  |  SKU: BW-17417

ST5L-BS for Yamaha YFZ450X (2010-2011) High Performance Replacement Battery 4.15 lb

23% off
Sale price $33.99 USD Regular price $43.99
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Direct replacement for Yamaha YFZ450X (2010-2011) models
Meets or exceeds OEM specifications for reliable performance
Provides exceptional starting power for your ATV
Maintenance-free design, ready to install out of the box
Lightweight construction enhances overall vehicle performance
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

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Volts & Amps

12 Volts | 4.5 AH

Terminal Type

Nut & Bolt

ST5L-BS Replacement Battery for Yamaha YFZ450X (2010-2011)

Upgrade your Yamaha YFZ450X (2010-2011) with this ST5L-BS direct replacement battery engineered to deliver strong starting power and dependable electrical system performance. Designed to meet or exceed original OEM specifications for the ST5L-BS, this maintenance-free 12V battery is built for powersports reliability when you need reliable starts and consistent accessory power on the trail or track.

Key Specifications

  • Compatibility: Yamaha YFZ450X (2010-2011)
  • Battery Model: ST5L-BS (direct replacement)
  • Voltage: 12 Volts
  • Capacity: 4.5 Ah
  • Terminal Type: Nut & Bolt
  • Brand / Label: SigmasTek
  • Design Notes: Maintenance-free and ready to install
  • Fit Type: Direct replacement; designed for reliable performance in 450 engine applications

Benefits

This ST5L-BS replacement battery is a high-performance battery solution tailored for compact powersports applications. Its maintenance-free design eliminates the hassle of routine electrolyte checks and makes installation quick and straightforward. The Nut & Bolt terminal configuration ensures a secure and reliable connection, even under vibration and high RPM conditions common to off-road and sport ATV use.

Built to provide exceptional starting power in 450-class engines, this long-lasting battery supports frequent starts and reliable accessory power for lights, horns, and small electronics. The lightweight construction reduces overall weight on your Yamaha YFZ450X while maintaining the robust cranking power necessary for consistent ignition performance. As a dependable replacement battery, it’s suitable not only for OEM swaps but also for hobbyist restorations and track-day prep.

Beyond powersports, this compact 12V battery can serve in light emergency power scenarios, backup applications, or small UPS-style configurations where a compact, maintenance-free battery is beneficial. Its direct-fit design and reliable output make it an excellent choice for riders who expect consistent performance and minimal maintenance.

Ready to replace your old battery? Purchase this ST5L-BS 12V 4.5 Ah replacement battery for your Yamaha YFZ450X (2010-2011) today to restore reliable starts and long-term dependability.

Technical Specifications

Voltage12 Volts
Amp Hours4.5 AH
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)80
Length (in.)4.49
Width (in.)2.8
Height (in.)4.21
Weight (lb.)4.15

Product Highlights

  • Manufacturer: SigmasTek
  • Product Type: Powersport Batteries
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'-/+"

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