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SigmasTek  |  SKU: BW-14206

National C20A High Performance Replacement Battery 8.61 lb

18% off
Sale price $74.99 USD Regular price $91.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for optimal performance
Maintenance-free design with spill-proof construction
U.L. recognized and CE certified for safety and reliability
Brand new and factory fresh for long-lasting use
1-year warranty ensures peace of mind and quality assurance
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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

6 Volts | 20 Ah

Terminal Type

Nut & Bolt

National Battery C20A Replacement Battery (Compatible with National Battery C20A)

This replacement National Battery C20A unit is crafted to be fully compatible with the National Battery C20A model, offering dependable performance and reliable longevity. Manufactured by SigmasTek to meet or exceed OEM SLA specifications, this battery provides a maintenance-free, spill-proof power source using AGM technology. Whether your application requires steady standby power or dependable cycling performance, this high-performance battery delivers the consistent output you expect from a professional-grade replacement battery.

Key Specifications

  • Model: C20A (Replacement for National Battery C20A)
  • Replacement Brand: SigmasTek
  • Compatible OEM Brand: National Battery
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 6 Volts
  • Capacity: 20 Ah
  • Terminal Type: Nut & Bolt
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year

Benefits

The National Battery C20A replacement offers superior durability and long-term reliability. AGM construction provides low internal resistance and improved vibration tolerance, contributing to a longer service life for both float and cyclic applications. Its maintenance-free and spill-proof nature makes it a safe choice for installations where accessibility is limited and spills must be avoided.

  • Durability: Solid internal build reduces the risk of premature failure and withstands vibration and shock.
  • Long Life: Designed to meet OEM expectations for extended service in both standby and cyclic uses.
  • High Performance: Consistent voltage delivery supports sensitive electronics and critical backup loads.
  • Safety & Compliance: U.L. recognized and CE certified for secure, compliant operation.
  • Typical Applications: Perfect for UPS systems, emergency lighting and backup, security systems, mobility equipment, and various power tools.

Replace your worn battery with this dependable, high-performance replacement battery for the National Battery C20A. Buy now to secure a brand new, factory fresh unit with a 1 year warranty and restore reliable, long-lasting power to your equipment.

Technical Specifications

Voltage6 Volts
Amp Hours20 Ah
Terminal TypeNut & Bolt
Length (in.)6.18
Width (in.)3.27
Height (in.)4.92
Weight (lb.)8.6

Product Highlights

  • Brand Replacement : National Battery C20A
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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