APOLLO NT-T51K High Performance Alarm Replacement Battery 24.72 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.
APOLLO NT-T51K High Performance Alarm 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 | 35 AH
Terminal Type
Nut & Bolt
Replacement APOLLO NT-T51K Alarm Battery — APOLLO NT-T51K
For reliable backup power in the APOLLO NT-T51K alarm system, choose this replacement battery that meets or exceeds OEM specs. Built to deliver consistent, safe performance, the APOLLO NT-T51K replacement battery is an ideal choice for alarm panels, access control equipment, and other critical power applications where reliability matters.
Key Specifications
- Model Compatibility: APOLLO NT-T51K
- Included Battery: 1 battery - SP12-35 NB (12 V 35 AH)
- Construction: Valve Regulated Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Performance: Superior Performance Guaranteed
- Enclosure: Rugged Plastic Case And Cover
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Voltage: 12 Volts
- Capacity: 35 AH
- Terminal Type: Nut & Bolt
- Brand: SigmasTek
Benefits
- Durability — With valve-regulated, spill-proof construction and a rugged plastic case, this battery resists the wear and tear found in everyday alarm and power supply installations.
- Long Life — Designed for standby and cyclic applications, this long-lasting battery ensures your NT-T51K alarm system remains ready with dependable reserve capacity.
- High Performance — As a high-performance battery replacement for the APOLLO NT-T51K, it reliably supports alarm panels, sensors, and power supplies during outages or power interruptions.
- Typical Applications — Perfect for access control systems, home and commercial alarm systems, burglar alarm systems, security systems, and power supplies that require proven backup power.
- Safety & Compliance — U.L. recognition and CE certification provide assurance that the battery meets applicable safety and performance standards for security equipment.
- Easy Connection — Nut & bolt terminals provide secure, straightforward connections for technicians performing battery changes or system maintenance.
Ready to upgrade or replace the battery in your APOLLO NT-T51K system? Order this SP12-35 NB 12 V 35 AH SigmasTek replacement battery today for reliable, long-lasting performance and professional-grade backup power. Click to buy now and enjoy fast processing for in-stock items.
Technical Specifications
Product Highlights
- Brand Replacement : APOLLO NT-T51K Alarm
- 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.
