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SigmasTek  |  SKU: BW-19311

Mainstream MSX20CH High Performance Replacement Battery 13.41 lb

17% off
Sale price $98.99 USD Regular price $118.99
Shipping calculated at checkout.
Maintenance-free AGM design eliminates the need for acid refills
Spillproof and leakproof for safe, 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 freeze, heat, 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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⚠️ 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 MSX20CH Replacement Motorcycle Battery (Compatible)

This compatible Mainstream MSX20CH replacement battery is an AGM maintenance-free unit designed for riders who want reliable starting power without the mess of traditional flooded batteries. Offering performance and dependability in a compact package, this replacement battery is ideal for motorcycles and other small vehicles that require strong cranking power and dependable deep cycle capability. If you need a high-performance battery that is also a long-lasting battery for everyday or seasonal use, the MSX20CH compatible unit provides a straightforward, maintenance-free upgrade.

Key Specifications

  • Maintenance-Free Design
  • Spillproof and Leakproof Design
  • U.L. Recognized and CE Certified
  • Absorbed Glass Mat 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
  • SigmasTek
  • 12 Volts
  • 18 Ah
  • Nut & Bolt
  • Mainstream

Benefits

The Mainstream MSX20CH replacement battery is built for durability and extended service life. Its AGM construction and valve regulated venting provide a sealed, maintenance-free experience while resisting leaks and spills. The robust design helps the battery hold up under vibration, temperature swings and rough road conditions, translating into real-world longevity that riders count on. This unit also offers reliable starting power along with useful deep cycle performance for accessories.

As a high-performance battery for motorcycles, it excels at delivering quick bursts of power for engine starts and at maintaining stable output for headlights, heated grips, GPS units and other accessories. Typical applications include motorcycle ignition systems, small DC emergency backups, portable tools, and workshop chargers. Its compact size and sealed design make it well suited for confined battery compartments and varied mounting orientations.

Every MSX20CH compatible battery is tested and packaged factory fresh to ensure quality out of the box. The combination of safety certifications, spillproof construction and a six month warranty gives you confidence that you’re installing a long-lasting battery that minimizes maintenance and maximizes uptime.

Ready to upgrade? Purchase this high-performance replacement battery compatible with Mainstream MSX20CH today and enjoy dependable starts, long-lasting performance and fast shipping.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)260
Length (in.)6.0
Width (in.)3.44
Height (in.)6.38
Weight (lb.)13.4

Product Highlights

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

Connections & Interface

  • Polarity: "'+/-"

Payment & Security

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