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SigmasTek  |  SKU: BW-18673

Mainstream MSZ12S High Performance Replacement Battery 6.47 lb

24% off
Sale price $49.99 USD Regular price $65.99
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 quality assurance
Superior starting power with deep cycle capacity for reliable performance
Extreme resistance to freeze, heat, and vibration ensures 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 | 11 Ah

Terminal Type

Nut & Bolt

Replacement Mainstream MSZ12S Battery — Compatible with MSZ12S

Bring dependable power back to your motorcycle with this compatible replacement for the Mainstream MSZ12S. This AGM maintenance-free battery is designed to provide strong starting currents and consistent performance without the need to add acid. As a high-performance battery tailored to high-rate discharge applications, it’s an effective replacement battery solution for riders and technicians seeking reliable energy and minimal maintenance.

Key Specifications

  • Model: MSZ12S (compatible replacement)
  • Brand: SigmasTek
  • Original/Reference: Mainstream
  • Voltage: 12 Volts
  • Capacity: 11 Ah
  • Terminal Type: Nut & Bolt
  • Construction: Absorbed Glass Mat (AGM)
  • Design: Maintenance-Free, Spillproof and Leakproof
  • 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 built for durability and long life, giving you consistent starts and dependable accessory power. The maintenance-free AGM design prevents spills and leaks, reduces upkeep, and enhances safety during installation and transport. As a long-lasting battery option, it resists thermal extremes and vibration to perform reliably in demanding environments.

Designed as a high-performance battery, it meets the needs of high-rate discharge applications like motorcycle ignition systems and accessory loads. You’ll benefit from strong starting power and sufficient deep cycle capacity to run lights, heated gear, and small electronics. Typical applications include motorcycle starters, emergency power backup, and portable tools — anywhere a reliable burst of power is required.

Each battery is factory fresh and professionally tested to ensure quality and performance. With U.L. recognition, CE certification, and a 6 month warranty, this replacement Mainstream MSZ12S battery provides a trustworthy, cost-effective solution for riders and repair professionals.

Take action now: purchase this replacement Mainstream MSZ12S high-performance battery and enjoy reliable starts, long-lasting performance, and fast shipping. Order today to keep your bike running at its best.

Technical Specifications

Voltage12 Volts
Amp Hours11 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)210
Length (in.)5.94
Width (in.)3.43
Height (in.)4.33
Weight (lb.)6.46

Product Highlights

  • Brand Replacement : Mainstream
  • Manufacturer: SigmasTek
  • Product Type: Motorcycle
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'+/-"

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