National Battery NB12-5.5HR High Performance Replacement Battery 3.5 lb
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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 NB12-5.5HR 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 | 5.5 Ah
Terminal Type
F2
National Battery NB12-5.5HR Replacement Battery — Compatible with National Battery NB12-5.5HR
Restore dependable power with the National Battery NB12-5.5HR replacement battery, designed for perfect compatibility and reliable performance. This high-performance battery provides maintenance-free operation and proven AGM technology for extended service life. If you need a long-lasting battery for backup or portable systems, the NB12-5.5HR replacement is a trustworthy choice.
Key Specifications
- Compatible Model: National Battery NB12-5.5HR
- Replacement Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 5.5 Ah
- Terminal Type: F2
- Technology: Absorbent Glass Mat (AGM)
- Design: Maintenance-Free, Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
Benefits
Engineered with AGM construction, the National Battery NB12-5.5HR replacement provides consistent output, improved charge acceptance, and minimal self-discharge — important traits for a high-performance battery. The maintenance-free, spill-proof design ensures safe installation and reduces upkeep, making it ideal for sealed-environment applications.
Certified by U.L. and CE, this long-lasting battery meets recognized safety and quality standards for use in UPS systems, emergency lighting, alarm panels, security installations, medical equipment, and portable tools. Its 5.5 Ah capacity offers balanced backup runtime for compact devices and systems where space and weight matter.
Supplied brand new and covered by a 1 year warranty, the NB12-5.5HR replacement battery is a practical, cost-effective alternative to OEM units, offering the performance and reliability you expect from National Battery compatible power solutions.
Ready to secure reliable backup power? Purchase the National Battery NB12-5.5HR replacement battery today and enjoy dependable, long-lasting power for your critical devices.
Technical Specifications
Product Highlights
- Brand Replacement : National Battery NB12-5.5HR
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
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