National Battery NB12-3.5HR Reliable Replacement 2.98 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 NB12-3.5HR Reliable Replacement 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 | 3.5 Ah
Terminal Type
F2
National Battery NB12-3.5HR Replacement Battery — Compatible with National Battery NB12-3.5HR
The National Battery NB12-3.5HR replacement battery is a precision-built, rechargeable Sealed Lead Acid (SLA) solution designed to match or exceed the performance of the original National Battery NB12-3.5HR model. Engineered for reliable power delivery and consistent operation, this high-performance battery provides the compatibility and dependability you expect for critical backup and portable applications. If you need a trusted, long-lasting battery that fits your device perfectly, this NB12-3.5HR replacement battery is an excellent choice.
Key Specifications
- Model Compatibility: National Battery NB12-3.5HR
- Battery Type: Rechargeable Sealed Lead Acid (SLA)
- Technology: Absorbent Glass Mat (AGM) Technology
- Design: Maintenance-Free with Spill Proof Construction
- Safety & Approvals: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 3.5 Ah
- Terminal Type: F2
Benefits
This National Battery NB12-3.5HR replacement battery delivers dependable durability and extended cycle life thanks to AGM construction and rigorous quality controls. The maintenance-free, spill-proof design reduces service requirements while protecting surrounding electronics—making it ideal for deployments where accessibility is limited or safety is a priority. The included certifications (U.L. Recognized and CE Certified) confirm performance standards and help ensure safe operation in diverse environments.
The NB12-3.5HR is a long-lasting battery solution for UPS systems, ensuring you have reserve power during outages and brownouts. It’s well suited for emergency power packs that must remain ready at a moment’s notice, as well as for powering small tools and instrumentation that demand a steady 12 Volt supply. As a high-performance battery replacement, it also works well for alarm systems, telecommunications, mobility aids, and other critical devices.
With a factory-fresh condition and a 1 Year Warranty, this replacement battery offers peace of mind and reliable operation. The 3.5 Ah capacity delivers balanced runtime and recharge behavior, while the F2 terminal format ensures straightforward installation in compatible devices.
Purchase your National Battery NB12-3.5HR replacement battery now to secure a high-performance, long-lasting battery that’s built to OEM standards. Order today and restore dependable power to your equipment.
Technical Specifications
Product Highlights
- Brand Replacement : National Battery NB12-3.5HR
- Manufacturer: SigmasTek
- Product Type: SLA Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
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