Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-4486

Emerson-Liebert GXT3 240V UPS High Performance Replacement Battery Set 70.06 lb

22% off
New arrival
Sale price $340.99 USD Regular price $435.99
Shipping calculated at checkout.
Contains 20 fresh SigmasTek SP12-5.5HR batteries (12V 5.5AH)
High rate discharge design delivers reliable power during outages
Valve regulated spill-proof batteries offer safe, leak-free operation
Low self-discharge preserves battery capacity over time
Certified safety standards with 1 year warranty included
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

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.

Send Your Battery Photo

Expert Technician 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 BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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

🔹 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: 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

SigmasTek SP12-5.5HR Replacement Battery Set for Emerson-Liebert GXT3 240V UPS

Precision-engineered for the Emerson-Liebert GXT3 240V, this replacement battery set delivers reliable compatibility, consistent high-rate performance, and proven reliability for mission-critical installations. Designed as a drop-in solution for the Emerson-Liebert GXT3 240V UPS, the 20-pack of SigmasTek SP12-5.5HR batteries provides the power density and transient capability needed for systems that demand short-duration, high-current delivery. Whether you are servicing data center power infrastructure or refreshing emergency backup, this replacement UPS battery set combines factory-fresh components and tested quality to restore your UPS to peak operation.

Key Specifications

  • Battery model: SigmasTek SP12-5.5HR (set of 20)
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Quantity: 20 batteries per set
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation note: Use all existing cables and hardware from original configuration

Benefits

This high-performance UPS battery set is built for durability and repeatable performance in demanding environments. The high rate discharge design makes these batteries ideal when your Emerson-Liebert GXT3 240V requires higher power output over short intervals — a common requirement during generator transfer, large load inrushes, or emergency shutdowns. Valve regulated, spill-proof construction and low self-discharge mean the set is safer to store and maintain, while high vibration resistance protects the cells in rack, cabinet, or mobile applications.

You get a long-lasting battery replacement that has been factory-fresh and fully tested to meet or exceed OEM specifications. The U.L. recognition and CE certification provide peace of mind for regulated installations. Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools and equipment that rely on dependable short-term, high-current delivery. Technically savvy staff test every set before shipping to ensure consistent, predictable results in the field.

Choosing this replacement UPS battery set restores runtime and reliability for your Emerson-Liebert GXT3 240V installation without guesswork. It’s an excellent solution when you need a high-performance UPS battery that is also a long-lasting battery for backup readiness.

Ready to replace your Emerson-Liebert GXT3 240V batteries? Order this SigmasTek SP12-5.5HR 20-pack today for fast shipping and a 1 year warranty — get the dependable backup power you need now.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)70.0

Product Highlights

  • Brand Replacement : Emerson-Liebert GXT3
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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.