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SigmasTek  |  SKU: BW-18764

WestCo 12V9-B Reliable Replacement Battery 6.21 lb

26% off
Sale price $41.99 USD Regular price $56.99
Shipping calculated at checkout.
Maintenance-free AGM design for hassle-free use
Spillproof and leakproof for safe handling
U.L. recognized and CE certified for quality assurance
Superior starting power with deep cycle capacity
Resistant to extreme freeze, heat, and vibration conditions
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Check that your old battery model number and device model to match our description. This makes sure they work together.


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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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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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


Volts & Amps

12 Volts | 8 AH

Terminal Type

Nut & Bolt

Replacement WestCo 12V9-B Motorcycle Battery — Compatible with WestCo 12V9-B

Upgrade your motorcycle’s starting performance with this compatible replacement WestCo 12V9-B motorcycle battery. Designed for compatibility, reliability, and consistent power delivery, this AGM maintenance-free battery eliminates the hassle of acid filling while delivering superior starting power and dependable deep-cycle capability. Whether you ride daily or store your bike seasonally, this high-performance battery provides the reliable performance you expect from a long-lasting battery built for motorcycle applications.

Key Specifications

  • Model: 12V9-B (compatible replacement for WestCo 12V9-B)
  • Voltage: 12 Volts
  • Amp-hours: 8 AH
  • Terminal Type: Nut & Bolt
  • Design: AGM (Absorbed Glass Mat) Maintenance-Free
  • Safety: Spillproof and Leakproof Design
  • Certifications: U.L. Recognized and CE Certified
  • Vent System: Valve Regulated Vent System
  • Durability: Extreme Freeze, Heat and Vibration Resistance
  • Performance: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty
  • Brands Mentioned: WestCo (compatible), SigmasTek (replacement)

Benefits

This replacement battery delivers long-lasting battery life through advanced AGM technology that traps electrolyte in a glass mat for maintenance-free service and leakproof operation. The valve regulated vent system and U.L./CE recognitions ensure safe, reliable performance under demanding conditions. Built to withstand extreme freeze, heat, and vibration, this high-performance battery is engineered to handle the rigors of motorcycle use and provide superior starting power for quick, consistent engine crank even in cold starts.

Beyond starting reliability, the battery’s deep cycle capacity supports accessories and intermittent high-rate discharge demands—perfect for vehicles that require bursts of power. As a replacement battery intended for motorcycles, it’s ideal for daily commuters, weekend riders, and performance bikes that need immediate responsiveness and dependable power delivery.

Typical applications include motorcycle starting systems, accessory power for lights and audio, and situations where a spillproof, maintenance-free battery is preferred. It also performs well for occasional emergency backup and portable power tools when a compact 12V power source is required. The robust construction and factory-fresh condition make it a dependable, long-lasting battery option for riders who won’t compromise on reliability.

Ready to replace your old battery? Order this replacement WestCo 12V9-B high-performance battery today and enjoy fast shipping, professional testing, and confidence backed by a 6 month warranty. Purchase now to get dependable starting power and a long-lasting battery solution for your motorcycle.

Technical Specifications

Voltage12 Volts
Amp Hours8 AH
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)120
Length (in.)5.94
Width (in.)3.46
Height (in.)4.21
Weight (lb.)6.2

Product Highlights

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

Connections & Interface

  • Polarity: "'+/-"

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