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SigmasTek  |  SKU: BW-19341

Harley-Davidson FXST/FLST Series 1200CC Compatible Replacement Battery (1984-1990) 12.07 lb

11% off
Sale price $84.99 USD Regular price $95.99
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Maintenance-free AGM design eliminates the need for acid refills
Spillproof and leakproof for safe, hassle-free use
U.L. recognized and CE certified for reliable quality
Superior starting power with deep cycle capacity for consistent performance
Resistant to extreme freeze, heat, and vibration 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

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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

Harley-Davidson 1200CC FXST/FLST Series, 1984-1990 Replacement Battery

Built to fit the Harley-Davidson 1200CC FXST/FLST Series (1984-1990), this AGM maintenance-free replacement battery provides dependable compatibility, strong starting performance, and lasting reliability for classic Harley models. Eliminate the mess and maintenance of flooded batteries—this factory-fresh unit is spillproof, leakproof, and ready to install for immediate, worry-free power.

Key Specifications

  • Compatible Model: Harley-Davidson 1200CC FXST/FLST Series, 1984-1990
  • Brand: SigmasTek (replacement for Harley-Davidson)
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Design: Absorbed Glass Mat (AGM) Maintenance-Free
  • Spillproof and Leakproof Design
  • Valve Regulated Vent System
  • Certifications: U.L. Recognized and CE Certified
  • Resistance: Extreme Freeze, Heat and Vibration Resistance
  • Performance: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty

Benefits

This high-performance battery is engineered for longevity and dependable operation. The AGM maintenance-free construction delivers a spillproof solution that reduces maintenance and increases safety—perfect for riders who prefer a reliable, hassle-free power source. With superior starting power and excellent deep-cycle capability, this replacement battery ensures quick, confident starts and sustained support for lights and accessories.

Durability features include extreme resistance to freeze, heat, and vibration, which helps preserve battery life through varied climates and road conditions. As a long-lasting battery option, it’s ideal for classic motorcycle restoration projects, daily riders, and enthusiasts who want dependable power without constant attention. The valve regulated vent system, along with U.L. recognition and CE certification, reinforces the robust safety and manufacturing standards of this unit.

Beyond motorcycle starting, AGM replacement batteries are versatile: they work well in emergency backup systems, compact UPS setups, and portable tool applications where reliable short bursts of high current are needed. This makes the unit a practical choice for customers seeking a dependable, multi-purpose 12V, 18Ah power source.

Take action now—order your Harley-Davidson 1200CC FXST/FLST Series, 1984-1990 replacement battery and experience the performance of a high-performance, long-lasting battery. Fast shipping and a 6 month warranty give you the confidence to install and ride immediately.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)270
Length (in.)6.88
Width (in.)3.43
Height (in.)6.13
Weight (lb.)12.06

Product Highlights

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

Connections & Interface

  • Polarity: "'+/-"

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