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SigmasTek  |  SKU: BW-19276

Mainstream MSX20H Compatible Replacement Battery 13.45 lb

16% off
Sale price $82.99 USD Regular price $98.99
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 reliable quality
Superior starting power with deep cycle capacity for tough rides
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 | 18 Ah

Terminal Type

Nut & Bolt

Mainstream MSX20H - Compatible Model: MSX20H

The Mainstream MSX20H is a compatible AGM maintenance-free replacement battery designed to offer robust starting power, dependable deep cycle performance, and maintenance-free operation for MSX20H motorcycles. If you’re seeking a high-performance battery that stands up to vibration, temperature extremes, and frequent high-rate discharge events, this Mainstream replacement battery delivers reliable power for daily riding and demanding conditions.

Key Specifications

  • Maintenance-Free Design
  • AGM Maintenance Free / Absorbed Glass Mat Design
  • Spillproof and Leakproof Design
  • U.L. Recognized and CE Certified
  • Valve Regulated Vent System
  • Extreme Freeze, Heat and Vibration Resistance
  • Superior Starting Power and Deep Cycle Capacity
  • Brand New, Factory Fresh
  • 6 Month Warranty
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Brand: Mainstream (also noted: SigmasTek)

Benefits

The Mainstream MSX20H replacement battery combines the convenience of a maintenance-free AGM design with the performance required for modern motorcycle electrical systems. This long-lasting battery is sealed and spillproof, eliminating the hassle of electrolyte maintenance while reducing the risk of corrosion and acid damage associated with flooded batteries. Its valve-regulated vent system enhances safety and simplifies use across shipping and service environments.

Built to tolerate extreme freeze, heat, and vibration, the MSX20H is ideal for riders who put their machines through a variety of conditions. The battery’s superior starting power ensures dependable engine starts even after extended storage, while its deep cycle capacity supports accessories, lighting, and ignition systems during high-power demand periods. Beyond motorcycles, this high-performance battery can be applied to small UPS units, emergency backup setups, and portable tools that require a reliable 12-volt supply.

Each Mainstream MSX20H is shipped brand new and factory fresh, professionally tested to meet quality standards and backed by a 6 month warranty. The MSX20H offers a balanced solution for riders and technicians who need a dependable replacement battery without ongoing maintenance.

Don’t wait—purchase your Mainstream MSX20H replacement battery now for a high-performance, long-lasting battery and prompt shipping.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)310
Length (in.)6.85
Width (in.)3.39
Height (in.)6.14
Weight (lb.)13.44

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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