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SigmasTek  |  SKU: BW-20022

WestCo 12V12B-4 High Performance Replacement Battery 9.01 lb

16% off
Sale price $53.99 USD Regular price $63.99
Shipping calculated at checkout.
Maintenance-free AGM design eliminates the need for acid filling
Spillproof and leakproof for safe, hassle-free use
U.L. recognized and CE certified for guaranteed quality
Superior starting power with deep cycle capacity for reliable performance
Resistant to extreme freeze, heat, and vibration for durability
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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 | 10 Ah

Terminal Type

Nut & Bolt

WestCo 12V12B-4 Compatible Replacement Motorcycle Battery

This WestCo 12V12B-4 compatible replacement motorcycle battery is a sealed AGM maintenance-free unit designed for riders and technicians who want reliable power without the mess of traditional wet cells. The spillproof, leakproof construction and factory-fresh condition make this high-performance battery a dependable choice for motorcycles and other compact power needs. If you need a long-lasting battery that installs easily and delivers strong starting performance, this WestCo 12V12B-4 compatible replacement is engineered to meet those demands.

Key Specifications

  • AGM Maintenance Free Design
  • Maintenance-Free Design
  • Spillproof and Leakproof Design
  • U.L. Recognized and CE Certified
  • Absorbed Glass Mat (AGM) Design
  • Valve Regulated Vent System
  • Extreme Freeze, Heat and Vibration Resistance
  • Superior Starting Power and Deep Cycle Capacity
  • Brand New, Factory Fresh
  • 6 Month Warranty
  • Brand: SigmasTek
  • Compatible Brand/Model: WestCo
  • Model: 12V12B-4
  • Voltage: 12 Volts
  • Capacity: 10 Ah
  • Terminal: Nut & Bolt

Benefits

The WestCo 12V12B-4 compatible replacement battery brings durable design and extended service life through AGM technology. Its rugged resistance to heat, freeze, and vibration makes it ideal for motorcycles subject to road shock, and the valve-regulated construction minimizes maintenance and leakage risk. As a high-performance battery, it supports quick engine starts and sustained electrical loads, offering consistent cranking power when you need it most.

In addition to motorcycle starting, this long-lasting battery is useful for compact UPS systems, small emergency power needs, and portable power for tools or accessories—any application where a compact, sealed battery with deep cycle capacity is valuable. The nut-and-bolt terminal style allows a secure and stable connection, reducing electrical loss and ensuring reliable performance over repeated cycles. Certified to U.L. and CE standards, this replacement battery is suited for those prioritizing safety and dependability.

Replace your old battery with confidence—buy the WestCo 12V12B-4 compatible replacement battery today and enjoy maintenance-free, high-performance power with quick shipping and a solid warranty.

Technical Specifications

Voltage12 Volts
Amp Hours10 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)210
Length (in.)5.93
Width (in.)2.75
Height (in.)5.12
Weight (lb.)9.0

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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