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SigmasTek  |  SKU: BW-15687

National Battery C40A High Performance Replacement Battery 29.14 lb

18% off
Sale price $150.99 USD Regular price $183.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for enhanced durability
Maintenance-free and spill-proof design for hassle-free use
U.L. Recognized and CE Certified ensuring safety and quality
Brand new and factory fresh for reliable performance
1 year warranty for peace of mind and protection
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 40 Ah

Terminal Type

Nut & Bolt

National Battery C40A Replacement Battery — Compatible with National Battery C40A

Restore reliable power to your National Battery C40A-equipped system with this replacement battery designed for direct compatibility and consistent performance. As a sealed lead acid (SLA) battery using AGM technology, this product offers a maintenance-free, spill-proof power source that is ideal for both standby and cyclic uses. Count on this long-lasting battery to deliver steady output when you need it most.

Key Specifications

  • Compatible Model: National Battery C40A
  • Replacement Brand: SigmasTek
  • Chemistry: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 40 Ah
  • Terminal Type: Nut & Bolt
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year

Benefits

The National Battery C40A replacement delivers durability and dependable performance through AGM construction that resists vibration and improves cycle life. As a maintenance-free design it removes the need for routine upkeep, which is especially valuable in installations where access is limited or continuous operation is critical. The spill-proof construction also enhances safety during handling and installation.

This high-performance battery suits a wide range of applications including UPS and emergency backup, security and alarm systems, telecom cabinets, and portable power tools. With a 12V, 40 Ah rating, it provides ample capacity for extended backup and steady discharge characteristics, helping connected equipment remain operational through outages and load events. Nut & bolt terminals make for robust, secure connections appropriate for industrial and mobile setups.

Safety certifications (U.L. Recognized and CE Certified) and the brand new, factory fresh condition ensure consistency and compliance with industry standards. Plus, a 1 year warranty gives you extra assurance in the quality and longevity of this replacement battery.

Ready to upgrade to a reliable, long-lasting battery? Purchase this National Battery C40A replacement battery today to secure a high-performance battery solution with reliable backup power. Click to buy now for fast delivery and competitive pricing.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)29.11

Product Highlights

  • Brand Replacement : National Battery C40A
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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