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SigmasTek  |  SKU: BW-17959

STX20L-BS Compatible Replacement Battery For Triumph Rocket III 2003-2019 11.62 lb

16% off
Sale price $75.99 USD Regular price $89.99
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Exact fit for Triumph Rocket III (2003-2019) models
Meets or exceeds OEM specs for reliable power
Maintenance-free design for hassle-free use
Spill-proof and leak-proof for safe handling
High discharge rate ensures quick, powerful starts
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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 | 18 Ah

Terminal Type

Nut & Bolt

STX20L-BS Battery For Triumph Rocket III (2003-2019)

Upgrade your Triumph Rocket III (2003-2019) with this high-quality replacement battery engineered for superior compatibility, dependable performance, and enduring reliability. The STX20L-BS delivers the cranking power and resilience required by the 2300CC engine, offering a maintenance-free experience and construction designed to withstand vibration, spills, and the demanding conditions of spirited riding. If you need a high-performance battery that installs easily and starts confidently every time, the STX20L-BS is built to meet or exceed OEM specifications for riders who want long-lasting battery performance.

Key Specifications

  • Model: STX20L-BS
  • Compatible Vehicle: Triumph Rocket III (2003-2019)
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Maintenance-Free Design
  • Spill-proof and Leak-proof Construction
  • High Discharge Rate for Quick and Powerful Starting
  • Enhanced Vibration Resistance for Demanding Motorcycle Applications
  • Meets or Exceeds OEM Specifications
  • Perfect Fit Guarantee for Seamless Installation

Benefits

  • Durability: The STX20L-BS is built with robust construction and advanced internal technology to resist vibration and physical stress common on large-displacement motorcycles, giving you a durable power source ride after ride.
  • Long Life: Designed for longevity, this long-lasting battery reduces replacement frequency and delivers consistent performance through seasonal use and extended storage periods.
  • High Performance: With a high discharge rate and OEM-level specifications, the battery offers fast, reliable starts even in cold or challenging conditions—exactly what you expect from a high-performance battery on a 2300CC machine.
  • Maintenance-Free Convenience: The maintenance-free, spill-proof design eliminates the need for topping off electrolytes, making it safer and simpler to install and maintain.
  • Versatile Applications: While optimized for the Triumph Rocket III, this replacement battery’s characteristics—stable output, vibration resistance, and reliable starting—also make it suitable for other high-discharge motorcycle and powersport uses, and it can be relied upon for emergency start needs.
  • Safety and Reliability: Leak-proof construction and secure terminal design reduce the chance of corrosive damage or electrical issues, providing a dependable power solution for demanding conditions.

Choose the STX20L-BS replacement battery for your Triumph Rocket III to enjoy reliable starts, hassle-free maintenance, and proven durability. Add this high-performance, long-lasting battery to your cart now and experience the confidence of a perfect-fit, ready-to-ride power upgrade.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)270
Length (in.)6.89
Width (in.)3.43
Height (in.)6.14
Weight (lb.)11.61

Product Highlights

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

Connections & Interface

  • Polarity: "'-/+"

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