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SigmasTek  |  SKU: BW-13019

Exide 21-451853-01 Compatible Replacement Battery 12.66 lb

25% off
Sale price $55.99 USD Regular price $74.99
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Compatible replacement for Exide 21-451853-01 emergency lighting battery
Uses advanced Absorbent Glass Mat (AGM) technology for reliable performance
Maintenance-free and spill-proof design for safe, hassle-free use
U.L. Recognized and CE Certified for quality and safety assurance
Includes 1-year warranty and guaranteed factory-fresh condition
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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

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Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Exide 21-451853-01 Replacement Battery — Compatible with Exide 21-451853-01

Engineered to replace the Exide 21-451853-01, this replacement battery provides reliable emergency and standby power using proven AGM technology. This high-performance battery is maintenance-free, spill-proof, and supplied brand new for immediate dependable service. If you’re seeking a long-lasting battery that adheres to OEM SLA specifications and offers certified safety, this unit is an excellent match for the Exide 21-451853-01 model.

Key Specifications

  • Compatible Model: Exide 21-451853-01
  • Replacement Brand: SigmasTek (replacement for Exide)
  • Battery Type: Rechargeable Sealed-Lead-Acid (SLA) / Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 18 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

This replacement battery offers dependable performance across a wide range of standby and cyclic applications. AGM technology ensures the battery is sealed and maintenance-free, reducing installation complexity and minimizing the chance of leaks or corrosion. The construction supports long-term reliability so you can depend on the battery for consistent backup power when systems are called upon.

As a high-performance battery, it delivers stable voltage and good charge acceptance—attributes needed for UPS systems, emergency lighting, alarm panels, and medical equipment. The unit’s U.L. and CE recognitions further reinforce its suitability for professional installations where safety and compliance matter.

  • Reliability: Sealed AGM cells for consistent, long-term operation
  • Performance: Stable discharge and effective recharge behavior
  • Safety: Spill-proof, maintenance-free design with certifications
  • Warranty: 1-year coverage for added buyer confidence

Typical uses include emergency lighting, security and fire alarms, UPS backup, consumer electronics, medical equipment, home & garden tools, and portable power applications. If your system requires the Exide 21-451853-01, choose this replacement battery to ensure matched performance and safe, reliable operation.

Replace your old battery now—order the Exide 21-451853-01 replacement battery today and secure dependable, long-lasting power backed by a 1-year warranty.

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 : Exide 21-451853-01 Battery
  • Manufacturer: SigmasTek
  • Product Type: Emergency Power
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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