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SigmasTek  |  SKU: BW-6331

Dual-Lite 12-866-F2 High Performance Replacement Battery 18.1 lb

25% off
Sale price $111.99 USD Regular price $149.99
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Meets or exceeds OEM SLA battery specifications for reliable performance
Maintenance-free design with Absorbent Glass Mat (AGM) technology
Spill-proof construction ensures safe usage in various environments
U.L. Recognized and CE Certified for quality and safety assurance
Backed by a 1-year warranty for peace of mind and durability
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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 | 26 Ah

Terminal Type

F2

Replacement Dual-Lite 12-866-F2 Battery — Compatible with Dual-Lite 12-866-F2

The Dual-Lite 12-866-F2 replacement battery is crafted to match or exceed the original OEM SLA specifications for the Dual-Lite 12-866-F2 model. Designed for performance and reliability, this unit combines spill proof safety, AGM technology, and factory-fresh quality to ensure your critical lighting and alarm systems remain powered and protected.

Key Specifications

  • Model Compatibility: Dual-Lite 12-866-F2
  • Voltage: 12 Volts
  • Capacity: 26 Ah
  • Terminal Type: F2
  • Brand: SigmasTek
  • Battery Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free
  • Construction: Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This Dual-Lite 12-866-F2 replacement battery offers exceptional reliability and long service life, making it an excellent choice when replacing aging SLA cells. As a high-performance battery built with AGM technology, it delivers stable, efficient power output and superior charge acceptance for both standby and cyclic applications. The maintenance-free and spill proof design reduces upkeep and enhances safety during installation and operation.

Expect durable performance in a wide range of scenarios: emergency lighting, security alarms, fire alarms, home and garden devices, consumer electronics, and medical equipment all benefit from the consistent power this battery supplies. In addition, it is well suited for UPS backup systems, emergency power configurations, and portable tools where reliable energy storage is required. The U.L. recognition and CE certification provide industry-standard assurance of safety and quality.

Ready for immediate use, this brand new, factory fresh battery is backed by a one-year warranty and guaranteed compatibility with the Dual-Lite 12-866-F2 model. It’s an ideal replacement battery solution for facility managers, service technicians, and homeowners seeking a dependable, long-lasting battery option.

Purchase your replacement Dual-Lite 12-866-F2 high-performance battery today — order now for fast fulfillment and worry-free compatibility.

Technical Specifications

Voltage12 Volts
Amp Hours26 Ah
Terminal TypeF2
Length (in.)6.56
Width (in.)6.97
Height (in.)4.92
Weight (lb.)18.08

Product Highlights

  • Brand Replacement : Dual-Lite 12-866-F2 Battery
  • Manufacturer: SigmasTek
  • Product Type: Security Alarm
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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