National NB12-18HR High Performance Replacement Battery 12.66 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.
National NB12-18HR High Performance Replacement Battery is backordered and will ship as soon as it is back in stock.
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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 | 18 Ah
Terminal Type
Nut & Bolt
National Battery NB12-18HR Replacement Battery — Compatible with National Battery NB12-18HR
Restore dependable power with the National Battery NB12-18HR replacement battery. Built to match or exceed OEM SLA specifications, this maintenance-free, spill-proof battery uses AGM technology to deliver consistent energy and dependable operation. For applications demanding a reliable, long-lasting battery, the NB12-18HR replacement provides a high-performance solution trusted in many backup and portable power setups.
Key Specifications
- Model: National Battery NB12-18HR
- 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
- Built for endurance: AGM and sealed construction reduce maintenance needs and protect internal components for extended durability.
- Reliable longevity: Designed to deliver steady performance across many cycles, making it a practical long-lasting battery for replacements.
- High-performance output: Engineered to support rapid charge acceptance and provide stable voltage under load for sensitive devices.
- Safety certified: U.L. Recognized and CE Certified to ensure compliance with common industry safety standards.
- Ideal applications: Well suited for UPS systems, alarm and security equipment, emergency lighting, medical backup, telecom, and small-scale power tools.
- Secure installation: Nut & bolt terminals provide stable, low-resistance connections that minimize power loss and improve safety.
- Assured quality: Delivered brand new and factory fresh with a 1 year warranty to back your purchase.
Ready to upgrade your backup power? Purchase the National Battery NB12-18HR replacement battery now to ensure reliable, long-lasting performance and peace of mind with every charge.
Technical Specifications
Product Highlights
- Brand Replacement : National Battery NB12-18HR
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
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