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SigmasTek  |  SKU: BW-19886

WestCo 12V9B-4 High Performance Replacement Battery 8.71 lb

27% off
Sale price $46.99 USD Regular price $63.99
Shipping calculated at checkout.
Maintenance-free AGM design eliminates acid refills
Spillproof and leakproof for safe, hassle-free use
U.L. recognized and CE certified for quality assurance
Extreme resistance to freeze, heat, and vibration
Superior starting power with deep cycle capacity
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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.

Disclaimer

⚠️ 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

WestCo 12V9B-4 Replacement Battery - Compatible 12 Volts 8 AH (SigmasTek)

This compatible replacement WestCo 12V9B-4 is an AGM maintenance-free battery engineered to provide safe, reliable power for motorcycles and other high-rate discharge applications. If you're searching for a dependable replacement battery that’s spillproof, factory fresh, and certified for quality, the WestCo 12V9B-4 replacement unit offers the performance and durability you need without the hassle of acid maintenance.

Key Specifications

  • Compatibility / Model: WestCo 12V9B-4 (compatible replacement)
  • Battery Type: AGM Maintenance Free / Absorbed Glass Mat Design
  • Design Features: Maintenance-Free Design; Spillproof and Leakproof Design
  • Certifications: U.L. Recognized and CE Certified
  • Ventilation: Valve Regulated Vent System
  • Performance: Extreme Freeze, Heat and Vibration Resistance
  • Capacity & Output: 12 Volts, 8 AH
  • Terminal Type: Nut & Bolt
  • Performance Characteristics: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty
  • Brand References: SigmasTek; Compatible with WestCo

Benefits

The WestCo 12V9B-4 compatible replacement battery is built for long-lasting use and delivers reliable cranking power when you need it. Its AGM design prevents spills and leaks, making installation and handling safer and cleaner than conventional flooded batteries. The valve regulated vent system and robust construction minimize maintenance and reduce the risk of performance loss from vibration, temperature extremes, or shock.

As a high-performance battery tailored to high rate discharge demands, it provides strong starting power for motorcycles, scooters, and other small vehicles. The battery’s deep cycle capability also makes it versatile enough to support accessories, lighting, and small electronics for short durations, making it valuable in emergency power scenarios, portable UPS setups, or handheld tool applications that require a compact, dependable 12V source.

Each unit ships factory fresh and is quality-tested by battery specialists to ensure reliable operation. With recognized safety certifications and a 6 month warranty, this replacement battery delivers confidence and value for riders and technicians alike.

Replace your tired battery now — purchase the WestCo 12V9B-4 compatible replacement battery today and enjoy a long-lasting, high-performance battery that’s ready to ride. Order now for quick shipping and dependable customer support.

Technical Specifications

Voltage12 Volts
Amp Hours8 AH
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)115
Length (in.)5.94
Width (in.)2.76
Height (in.)4.13
Weight (lb.)8.7

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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