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SigmasTek  |  SKU: BW-16532

National C50D High Performance Replacement Battery 12.66 lb

20% off
Sale price $55.99 USD Regular price $69.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for superior performance
Maintenance-free with spill-proof construction for hassle-free use
U.L. Recognized and CE Certified for safety and reliability
Brand new and factory fresh for guaranteed quality
1 year warranty ensures long-lasting peace of mind
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

National Battery C50D Replacement Battery — Compatible with National Battery C50D

The National Battery C50D replacement battery offers dependable compatibility and proven performance for applications that require steady backup power. This long-lasting battery uses AGM technology and a sealed, maintenance-free design to deliver reliable starts and stable energy output. When you need a high-performance battery replacement that matches OEM SLA specs, the National Battery C50D is a trusted choice.

Key Specifications

  • Model: National Battery C50D
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Brand: National Battery; SigmasTek
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Rugged reliability: Sealed AGM construction protects against spills and vibration—ideal for demanding environments and regular use.
  • Extended operational life: Engineered for consistent cyclic and standby performance, making it a practical long-lasting battery option.
  • High-performance capability: Supports strong charge acceptance and steady output for devices that require reliable power delivery.
  • Compliance assured: U.L. Recognized and CE Certified to meet recognized safety and performance standards.
  • Broad usage: Suitable for UPS systems, emergency power, security and alarm systems, medical devices, telecom equipment, and other backup applications.
  • Secure connectivity: Nut & bolt terminals ensure dependable electrical contact and simplified installation during replacement.
  • Purchase confidence: Arrives brand new and factory fresh with a 1 year warranty to protect your investment.

Don’t let a failing battery compromise your equipment. Buy the National Battery C50D replacement battery today to secure a reliable, high-performance battery that keeps your systems powered when it matters most.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)12.65

Product Highlights

  • Brand Replacement : National Battery C50D
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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