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SigmasTek  |  SKU: BW-3256

Liebert GXT1000RT-120B UPS High Performance Replacement Battery Set 15.77 lb

14% off
New arrival
$78.99 USD $91.99
Shipping calculated at checkout.
Set of 3 SigmasTek SP12-7.5HR batteries (12V 7.5AH) included for Liebert GXT1000RT-120B UPS
High rate discharge capability supports emergency and backup power needs
Low self-discharge technology for extended battery life when not in use
Certified for safety and performance with U.L. and CE marks
Comes with a 1 year warranty and guaranteed OEM compatibility
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from 22 reviews

WORKS GREAT!

Anonymous

Fast shipping and fair pricing. I will look to you for future battery purchases.

Anonymous

It's hard to rate a battery until some time has passed and it either continues functioning as it should of "gives up the ghost." It was not a straight bolt in application. The positive terminal was different than the stock battery and the positive lead from the motorcycle had to be bent in order to attach it to the battery. Otherwise, if the battery gives long service I have no complaints.

Anonymous

Shopping with you is a bit difficult; I had to type in a few words differently before I could find the battery's I was looking for.

Laura J

Excellent Product, timely delivery, love the extra battery life. Would recommend. rk

Robin Keister

Very easy to buy, high confidence that it was legit company. Reviews were good. Price, in the ball park. We'll see when I get battery.

Rob

Thank you for supplying the battery that I wanted. It arrived today in good order. Its specifications are as advertised and after charging, performs as expected.
Thank you for your professional approach to the payment method.
Regards Roy VK4ZQ.

Roy O'Malley

It worked

Mel Light

Finally found a battery that is similar in function to original equipment.

Anonymous

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In conclusion, I believe that BatteryWeb has excellent service staff who make their customers feel honored and valued.
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Michael Talianker

this battery was just what I needed.

Robert Jones

Product is exactly as described and arrived quickly

Robert Jones

Great deal for the money.

Linda M.

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.

Easy to purchase

Alberto J.

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🔹 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.

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Category

UPS Batteries

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

SigmasTek SP12-7.5HR Replacement Battery Set for Liebert GXT1000RT-120B

This replacement UPS battery set is designed specifically for the Liebert GXT1000RT-120B, delivering reliable compatibility, predictable performance, and trusted reliability when you need emergency power the most. Each kit includes three SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) engineered for high rate discharge applications so your Liebert GXT1000RT-120B will maintain runtime and protect critical equipment. These new, factory-fresh batteries are tested to meet or exceed OEM standards and provide a cost-effective way to restore full UPS capacity.

Key Specifications

  • Brand: SigmasTek
  • Battery Model: SP12-7.5HR
  • Quantity Included: 3 batteries
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Vibration Resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: Liebert GXT1000RT-120B

Benefits

  • Durability: Built with valve-regulated, spill-proof construction and high vibration resistance for dependable operation in rackmount and tower environments.
  • Long life: Low self-discharge and factory-fresh cells help ensure a long-lasting battery that holds charge during storage and delivers when needed—an ideal long-lasting battery choice for replacement.
  • High performance: The high rate discharge design provides the burst power required during short, demanding outages, making this a true high-performance UPS battery for your Liebert GXT1000RT-120B.
  • OEM-grade reliability: Each pack is tested to meet or exceed OEM specifications so your UPS restores original runtime and protection levels.
  • Typical applications: Optimized for Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery-powered tools that demand reliable short-duration output.
  • Easy installation note: This replacement UPS battery set requires reuse of your existing cables and hardware from the original installation—no new cabling included.

Whether you need a dependable replacement UPS battery for planned maintenance or to recover from an unexpected battery failure, this SigmasTek kit for the Liebert GXT1000RT-120B offers proven performance, safety certifications, and a one-year warranty. Orders for in-stock items typically ship within 24 hours—buy with confidence.

Ready to restore full protection? Purchase this high-performance UPS battery set for your Liebert GXT1000RT-120B now and enjoy reliable, long-lasting battery power when it matters most.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)15.75

Product Highlights

  • Brand Replacement : Liebert GXT1000RT-120B
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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