For support or quotes: sales@batteryweb.com

🎉 First Order : Get 10% OFF! 🎉

WELCOME10
SigmasTek  |  SKU: BW-3593

Conext CNB750 (12V 7.5AH) High Performance UPS Replacement Battery Set

Sale price $29.82 USD Regular price $37.67
Shipping calculated at checkout.

➤ Includes 2 fresh SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH)

➤ High rate discharge design ensures powerful UPS performance

➤ Valve regulated, spill-proof, and vibration resistant construction

➤ Low self-discharge for long-lasting battery life

➤ U.L. recognized and CE certified with 1 year warranty


📦🚀 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.

📸 Send Your Battery Photo / Unsure? Expert 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 IMAGE

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 | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for Conext CNB750 (12V 7.5AH) - SigmasTek SP12-7.5HR (12V 7.5Ah)

Give your Conext CNB750 (12V 7.5AH) a dependable power refresh with this replacement UPS battery set. Featuring two SigmasTek SP12-7.5HR batteries optimized for the CNB750, this kit emphasizes compatibility, performance, and safety. Designed for systems that demand reliable backup during outages, this high-performance UPS battery set ensures your equipment stays protected and ready when it matters most.

Key Specifications

  • Quantity: 2 batteries (replacement set)
  • Battery Model: SigmasTek SP12-7.5HR
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Safety Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Note: Use all existing cables and hardware from original configuration to connect new UPS batteries
  • Identifier: SigmasTek12 Volts7.5 AhF2

Benefits

This replacement UPS battery for the Conext CNB750 (12V 7.5AH) delivers consistent durability and extended service life. Engineered with a high rate discharge design, these batteries support the CNB750 during short-duration, high-demand events without compromising safety or performance. The valve regulated, spill-proof construction minimizes maintenance and enhances safety during installation and service, making it an excellent choice for both residential and commercial UPS setups.

Low self-discharge maintains stored capacity, ensuring the unit is ready when power fails. High vibration resistance increases reliability in environments subject to movement or mechanical vibration. As a high-performance UPS battery, the SigmasTek SP12-7.5HR is factory-fresh and U.L./CE certified to meet quality and regulatory standards. It performs reliably across Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools where dependable backup is required.

Our technical team tests each battery to meet or exceed OEM expectations so your Conext CNB750 returns to full protection quickly. Installation is straightforward when reusing your existing cables and hardware, simplifying the replacement process.

Ready to restore reliable backup? Order these replacement batteries for the Conext CNB750 (12V 7.5AH) now and secure a long-lasting battery solution that delivers high-performance UPS protection backed by a 1 year warranty.



Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.