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SigmasTek  |  SKU: BW-19225

Big Crank ETX20L High Performance Replacement Battery 11.62 lb

16% off
Sale price $75.99 USD Regular price $90.99
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
Extreme resistance to freeze, heat, and vibration ensures 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

Big Crank ETX20L - Replacement Battery

The Big Crank ETX20L replacement battery is a direct-fit, AGM maintenance-free solution designed for riders who demand compatibility, strong cold-cranking ability, and long-lasting reliability. Built to support high-rate discharge applications, this replacement battery supplies quick bursts of power for rapid engine starts while remaining spillproof and maintenance-free for simple, safe installation and operation.

Key Specifications

  • 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
  • Manufacturer: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Compatible Model: Big Crank ETX20L

Benefits

  • Durable Construction: The AGM and valve-regulated design minimize leaks and provide solid resistance to vibration and physical stress for reliable service life on two-wheeled platforms.
  • Extended Life: Factory-new assembly and quality control testing support a long-lasting battery that holds charge during storage and repeatedly performs under use.
  • Powerful Starts: Optimized for high-rate discharge, this high-performance battery delivers the immediate cranking amps needed for consistent engine starts in motorcycles and powersensitive accessories.
  • All-Weather Reliability: Rated to resist extreme freeze and heat, it maintains dependable output in cold mornings and hot summer conditions alike.
  • Zero Maintenance: AGM maintenance-free technology eliminates acid filling and periodic service, saving time and reducing hassle for mechanics and owners.
  • Certified Safety: U.L. Recognition and CE certification ensure adherence to safety and manufacturing standards.
  • Multi-Use Potential: While tailored for the Big Crank ETX20L motorcycle fitment, the battery’s deep cycle capacity and dependable output are also suitable for small emergency systems, portable tools, and backup power roles where a compact, long-lasting battery is needed.

Choose the Big Crank ETX20L replacement battery when you need a reliable, high-performance battery that’s easy to install and built to last. This 12 Volt, 18 Ah SigmasTek unit provides the surge and cycle capabilities essential for modern motorcycle electrical systems.

Ready to buy? Add this Big Crank ETX20L replacement battery to your cart now and enjoy a dependable, long-lasting battery with fast shipping and solid warranty coverage.

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 : Big Crank
  • Manufacturer: SigmasTek
  • Product Type: Motorcycle
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'-/+"

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