National Battery NB12-18F2 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 Battery NB12-18F2 High Performance 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 | 18 Ah
Terminal Type
F2
National Battery NB12-18F2 Battery (Replacement) — Compatible with National Battery NB12-18F2
This National Battery NB12-18F2 replacement battery is a dependable option for restoring power to systems that originally used the NB12-18F2 model. Built using Absorbent Glass Mat (AGM) technology and sealed lead acid design, this maintenance-free, spill-proof battery provides consistent output and reliable performance. If you need a high-performance battery that is both safe and long-lasting, this factory-fresh replacement meets OEM SLA specifications and is ready for immediate installation.
Key Specifications
- Model Compatibility: National Battery NB12-18F2
- Chemistry: Rechargeable Sealed Lead Acid (SLA)
- Technology: Absorbent Glass Mat (AGM) Technology
- Design: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Replacement Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 18 Ah
- Terminal Type: F2
Benefits
Expect long life and steady performance from this replacement battery. AGM construction offers superior charge acceptance and minimal maintenance, making it ideal for continuous float service in UPS and standby applications. The spill-proof design reduces installation constraints and improves safety in upright and enclosed battery compartments.
Typical benefits include:
- Reliable, high-performance battery delivery for critical backup and power systems.
- Durable and maintenance-free design for reduced lifecycle upkeep.
- Certified U.L. and CE compliance for use in regulated environments.
- Suitable for UPS systems, emergency lighting, security and alarm systems, medical equipment, telecom, and various portable power tools.
As a direct replacement for the National Battery NB12-18F2, this unit provides a cost-effective, long-lasting battery solution to maintain system uptime and reliability.
Don’t risk downtime—purchase this National Battery NB12-18F2 replacement battery now and restore dependable, long-lasting battery power to your equipment.
Technical Specifications
Product Highlights
- Brand Replacement : National Battery NB12-18F2
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- 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.




