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SigmasTek  |  SKU: BW-5482

Conext CNB900 UPS High Performance Replacement Battery

Sale price $26.03 USD Regular price $37.74
Shipping calculated at checkout.

➤ Absorbent Glass Mat (AGM) Technology enhances battery life

➤ High Rate Discharge Design ideal for emergency power needs

➤ Maintenance-Free, Spill Proof Construction minimizes upkeep

➤ U.L. Recognized and CE Certified for safety and compliance

➤ Brand New, Factory Fresh with 1 Year Warranty included


📦🚀 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

12 Volts | 12 Ah

Terminal Type

F2

SigmasTek 12V 12Ah (F2) Replacement Battery for Conext CNB900

Restore reliable backup power to your Conext CNB900 with this replacement UPS battery engineered for direct compatibility. Built to meet or exceed OEM SLA battery specifications, this high-performance UPS battery offers the robust performance and maintenance-free convenience required for mission-critical applications. If you’re replacing an aging or failed battery in a Conext CNB900, this SigmasTek unit provides dependable, long-lasting battery performance you can trust.

Key Specifications

  • Compatible UPS Model: Conext CNB900
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal Type: F2
  • Chemistry/Type: SLA (Sealed Lead Acid) / AGM Technology
  • Design: High Rate Discharge Design
  • Construction: Maintenance-Free, Spill Proof Construction (Absorbent Glass Mat)
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Typical Applications: Emergency Power Supply; Battery Powered Tools

Benefits

This replacement battery combines AGM technology and a high rate discharge profile to deliver rapid response and reliable power during outages and transient events. As a maintenance-free and spill-proof solution, it eliminates routine electrolyte checks and reduces the risk of leakage, making it ideal for enclosed UPS compartments and equipment rooms. The SigmasTek battery’s robust construction supports long-term standby service life, offering a long-lasting battery solution for Conext CNB900 systems.

For users seeking a high-performance UPS battery for frequent cycling or emergency readiness, this replacement is engineered to provide stable output and dependable recharge characteristics. U.L. recognition and CE certification ensure that the battery meets recognized safety and performance criteria, while the brand new, factory-fresh condition ensures optimal initial capacity and shelf life. Typical deployments include UPS backup for network equipment, critical infrastructure, and portable battery-powered tools requiring sealed lead-acid power sources.

Installation is straightforward in Conext CNB900-compatible trays and housings, and the F2 terminal configuration supports standard quick-connection hardware. This battery is a practical, cost-effective replacement option when you need to restore the full runtime and protection of your Conext CNB900.

Don’t wait until the next outage—buy this high-performance replacement UPS battery for your Conext CNB900 today and secure reliable, long-lasting backup power.


Payment & Security

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