Dual-Lite 12-866 Compatible Replacement Battery 18.1 lb
— Ready to ship immediately
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
Dual-Lite 12-866 Compatible Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
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
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.
Disclaimer
Disclaimer
⚠️ 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
12 Volts | 26 Ah
Terminal Type
Nut & Bolt
Replacement Dual-Lite 12-866 Emergency Lighting Battery — Compatible with Dual-Lite 12-866
Ensure uninterrupted emergency power with this replacement Dual-Lite 12-866 battery, designed to meet or exceed OEM SLA specifications for your Dual-Lite 12-866 system. Built for dependable performance and long service life, this high-performance battery offers maintenance-free operation and consistent output to keep critical lighting and alarm systems functioning during outages. Trust this long-lasting battery for dependable backup power when you need it most.
Key Specifications
- Model: Dual-Lite 12-866
- Voltage: 12 Volts
- Capacity: 26 Ah
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free
- Construction: Spill Proof
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Terminal Type: Nut & Bolt
- Brand: SigmasTek
Benefits
The Dual-Lite 12-866 replacement delivers superior durability and consistent charge acceptance, thanks to AGM technology and a sealed, maintenance-free design. This construction reduces the risk of leakage and eliminates regular electrolyte maintenance, making it ideal for installations in enclosures and areas where servicing access is limited. Certified by U.L. and CE, it meets safety and performance benchmarks for commercial and residential applications.
Use this long-lasting battery in emergency lighting systems, fire alarms, and security alarm installations where dependable reserve power is essential. It also supports medical equipment, consumer electronics, and various home & garden backup devices. The nut & bolt terminals provide secure, vibration-resistant connections suitable for frequent cycling and long-term installations.
We back this product with a one-year warranty and a commitment to 100% compatibility with your Dual-Lite 12-866. Orders for in-stock items typically ship within 24 hours, and our pricing is optimized to give you the best value for a replacement battery that’s built to perform.
Don’t wait until a power event exposes a weak battery—order your replacement Dual-Lite 12-866 high-performance battery now and ensure your safety systems remain protected.
Technical Specifications
Product Highlights
- Brand Replacement : Dual-Lite 12-866 Battery
- Manufacturer: SigmasTek
- Product Type: Security Alarm
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
