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SigmasTek  |  SKU: BW-18800

Sigmastek Replacement for Mighty Max YTX9-BS Compatible Replacement Battery 6.21 lb

24% off
Sale price $41.99 USD Regular price $54.99
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Maintenance-free AGM design eliminates the need for acid filling
Spillproof and leakproof for safe, mess-free use
U.L. recognized and CE certified for reliable quality
Superior starting power with deep cycle capacity for motorcycles
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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⚠️ 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 Mighty Max YTX9-BS Motorcycle Battery (Compatible YTX9-BS)

This compatible replacement battery for the Mighty Max YTX9-BS delivers compatibility, consistent performance, and reliable, maintenance-free operation for your motorcycle. Constructed with AGM technology, this replacement battery eliminates the need to fill with acid and offers a spillproof, leakproof solution that maintains peak performance even under tough conditions. If you're looking for a replacement battery that balances dependable starting power with a long-lasting battery design, this is an excellent choice.

Key Specifications

  • Model: YTX9-BS (replacement for Mighty Max YTX9-BS)
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Amp-Hours: 8 AH
  • Terminal Type: Nut & Bolt
  • Design: Maintenance-Free Design
  • Technology: Absorbed Glass Mat Design (AGM Maintenance Free)
  • Safety: Spillproof and Leakproof Design
  • Certifications: U.L. Recognized and CE Certified
  • Valve 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

Benefits

This replacement battery is designed for rugged, real-world use. The AGM construction ensures a sealed, maintenance-free unit that is resistant to vibration, shocks, and temperature extremes—key factors in motorcycle reliability. The spillproof and leakproof design adds safety and convenience when swapping batteries or transporting your bike. As a high-performance battery, it delivers robust cranking power for dependable cold starts and offers deep cycle capability to support accessories and electronics.

Durability and longevity are central advantages: the battery’s valve-regulated vent system and certified build quality provide stable performance over time, translating to a long-lasting battery that reduces downtime and replacement frequency. Typical applications include motorcycles, scooters, ATVs, portable emergency power packs, small UPS systems, and hand tools that demand high-rate discharge for short periods.

Whether you need a dependable replacement for routine riding or power for emergency situations, this replacement for Mighty Max YTX9-BS is a reliable, long-lived option. It’s engineered to deliver the high-performance battery characteristics riders expect—starting power, resilience, and low maintenance.

Ready to ride with confidence? Purchase this replacement battery for the Mighty Max YTX9-BS today and enjoy reliable starts and long-term performance. Order now for fast shipping and support.

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

Connections & Interface

  • Polarity: "'+/-"

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