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SigmasTek  |  SKU: BW-13673

National NB6-9HR High Performance Replacement Battery

Sale price $21.99 USD Regular price $32.15
Shipping calculated at checkout.

➤ Absorbent Glass Mat (AGM) technology for enhanced performance

➤ Maintenance-free and spill-proof design for hassle-free use

➤ U.L. Recognized and CE Certified for quality and safety assurance

➤ Brand new, factory fresh for reliable power and longevity

➤ 1 year warranty for peace of mind and customer protection


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

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.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

6 Volts | 9 AH

Terminal Type

F2

Replacement National Battery NB6-9HR for National Battery NB6-9HR

Designed for perfect fit and dependable performance, this replacement battery is built to meet or exceed the OEM specifications for the National Battery NB6-9HR. If you need reliable power for your UPS, alarm system, medical device, or emergency lighting, this high-quality, high-performance battery delivers consistent output and proven reliability. Backed by a 1 Year Warranty and brand-new, factory-fresh construction, the National Battery NB6-9HR replacement battery gives you the long-lasting battery life and worry-free operation you expect from a trusted SLA solution.

Key Specifications

  • Compatible Model: National Battery NB6-9HR
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 6 Volts
  • Capacity: 9 AH
  • Terminal Type: F2
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Seller/Replacement Brand: SigmasTek

Benefits

This replacement battery combines durable construction with advanced AGM technology to provide a robust power source that resists vibration and leakage. The maintenance-free design eliminates the need for topping off fluids or complex upkeep, making it an ideal, hassle-free solution for both professional and home installations. As a high-performance battery, it delivers steady current and reliable recharge acceptance, ensuring devices remain operational during critical moments.

Expect long service life and low self-discharge compared to older flooded designs — this long-lasting battery is optimized for cyclic use and standby applications. The spill-proof construction and UL/CE certifications make it appropriate for sensitive environments such as medical equipment, security systems, UPS backup, emergency lighting, telecom, and portable tools. Whether you need a dependable replacement battery for scheduled maintenance or an emergency swap-out, the National Battery NB6-9HR replacement provides peace of mind and consistent performance.

Installation is straightforward thanks to the F2 terminal configuration and standard 6V/9AH sizing, allowing fast, secure connections in compatible devices. The brand-new, factory-fresh condition ensures you receive a product free from prior wear or cycling, backed by a 1 Year Warranty for added assurance.

Ready to upgrade to a reliable, high-performance replacement battery? Order the National Battery NB6-9HR replacement today and enjoy long-lasting battery power and dependable compatibility.


Payment & Security

Payment methods

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