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SigmasTek  |  SKU: BW-19331

Mighty Max YTX20-BS Compatible Replacement Battery by Sigmastek 12.07 lb

20% off
Sale price $84.99 USD Regular price $105.99
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Maintenance-free AGM design eliminates the need for acid filling
Spillproof and leakproof for safe and hassle-free use
U.L. recognized and CE certified for guaranteed quality and safety
Superior starting power with deep cycle capacity for reliable performance
Resistant to extreme heat, freeze, and vibration for durability in all conditions
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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

Mighty Max YTX20-BS Replacement Battery — Compatible with YTX20-BS

Get back on the road fast with the replacement Mighty Max YTX20-BS battery, crafted for compatibility, dependable performance, and long-term reliability. This AGM maintenance-free unit eliminates the need for acid filling and delivers the high-rate discharge capability required by modern motorcycles. Choose this replacement battery for consistent starts and durable service life.

Key Specifications

  • Model: YTX20-BS (Replacement For Mighty Max YTX20-BS)
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Type: AGM Maintenance-Free / Absorbed Glass Mat Design
  • Terminal: Nut & Bolt
  • Design Features: Spillproof and Leakproof, Valve Regulated Vent System
  • Certifications: U.L. Recognized and CE Certified
  • Performance: Superior Starting Power and Deep Cycle Capacity
  • Environmental Resistance: Extreme Freeze, Heat and Vibration Resistance
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty
  • Brand / Supplier Notes: Mighty Max; SigmasTek

Benefits

  • Durability: Constructed with AGM technology and a valve-regulated vent system, this replacement battery is spillproof and leakproof, resisting vibration and temperature extremes for robust, reliable performance.
  • Long Life: With superior deep cycle capability, the YTX20-BS replacement provides extended service life and consistent energy delivery—making it a true long-lasting battery option for riders and equipment owners.
  • High Performance: Designed for high-rate discharge scenarios, this high-performance battery provides the powerful starting bursts motorcycles require, plus steady power for lighting and accessories.
  • Versatile Applications: While optimized for motorcycles, this replacement battery is also well-suited to compact UPS systems, emergency backup power, portable and power tools, and other 12V equipment needing dependable, maintenance-free power.
  • Safety & Assurance: U.L. recognition and CE certification indicate adherence to safety standards, and each unit ships brand-new and professionally tested for quality and reliability.
  • Convenience: Maintenance-free construction and Nut & Bolt terminals simplify installation and minimize upkeep, so you can focus on riding or using your equipment rather than battery maintenance.

Order your replacement for Mighty Max YTX20-BS battery today and enjoy a high-performance, long-lasting battery that restores reliable starting power. Purchase now for fast shipping and dependable value.

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

Connections & Interface

  • Polarity: "'+/-"

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