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SigmasTek  |  SKU: BW-19189

Duralast CTX20L-BS FP Compatible Replacement Battery 11.62 lb

17% off
Sale price $75.99 USD Regular price $91.99
Shipping calculated at checkout.
Maintenance-free AGM design eliminates the need for acid filling
Spillproof and leakproof for safe, hassle-free handling
U.L. recognized and CE certified for reliable quality and safety
Superior starting power with deep cycle capacity for high performance
Resistant to extreme freeze, heat, and vibrations for durability
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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

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Replacement Duralast CTX20L-BS FP Motorcycle Battery - Compatible Model CTX20L-BS FP

Designed as a direct, high-quality replacement battery for the Duralast CTX20L-BS FP, this AGM maintenance-free unit delivers reliable starting power and consistent performance for motorcycles and similar high-discharge applications. Whether you ride daily or store your bike seasonally, this replacement battery offers dependable cold-cranking ability, exceptional vibration resistance, and the peace of mind that comes with a factory-fresh, fully tested product. Built for riders who demand a high-performance battery and a long-lasting battery life, this unit removes the hassle of acid filling while providing spillproof, maintenance-free operation.

Key Specifications

  • Maintenance-Free Design
  • Spillproof and Leakproof Design
  • U.L. Recognized and CE Certified
  • Absorbed Glass Mat Design (AGM)
  • Valve Regulated Vent System
  • Extreme Freeze, Heat and Vibration Resistance
  • Superior Starting Power and Deep Cycle Capacity
  • Brand New, Factory Fresh
  • 6 Month Warranty
  • Model: Duralast CTX20L-BS FP
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal: Nut & Bolt
  • Brand: Duralast
  • Manufacturer/Distributor reference: SigmasTek

Benefits

This replacement battery is engineered to deliver robust starting power while offering deep cycle capacity for accessories and intermittent loads. The Absorbed Glass Mat (AGM) construction makes it a true high-performance battery: it resists vibration, tolerates extreme temperatures, and prevents spills under normal use. Riders will appreciate the maintenance-free design that eliminates topping up acid and simplifies handling. The valve regulated vent system enhances safety and reliability, while U.L. recognition and CE certification confirm compliance with stringent safety standards.

Durability and long life are core advantages: the AGM design and heavy-duty internal construction reduce sulfation and self-discharge, extending usable life compared to conventional flooded batteries. This long-lasting battery is ideal for motorcycles, sport bikes, cruisers, and ATVs that demand high-rate discharge and rapid power delivery. Beyond two-wheel use, its rugged construction and dependable output make it suitable for small emergency power needs, backup devices, and portable tools where a compact, sealed battery is preferred.

Installation is straightforward thanks to nut & bolt terminals and a form factor designed to match CTX20L-BS FP specifications. Each battery is professionally tested and packaged to ensure consistent quality and ready-to-install condition right out of the box.

Ready to upgrade? Order this replacement battery today and enjoy the combination of superior starting performance, maintenance-free convenience, and a long-lasting battery life. Buy now with confidence and get fast shipping on in-stock items.

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

  • Brand Replacement : Duralast
  • Manufacturer: SigmasTek
  • Product Type: Motorcycle
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'-/+"

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