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SigmasTek  |  SKU: BW-4419

Liebert GXT3-1000MT120 UPS High Performance Replacement Battery Set 14.01 lb

18% off
New arrival
Sale price $70.99 USD Regular price $86.99
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Set of 4 SigmasTek SP12-5.5HR replacement batteries (12V 5.5AH)
Designed for short bursts of high power in UPS applications
Durable valve regulated spill-proof and vibration resistant build
Low self-discharge keeps batteries ready for use longer
Factory fresh with U.L. and CE certifications plus 1-year warranty
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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.

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Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

Replacement Battery Set for Liebert GXT3-1000MT120 UPS — SigmasTek SP12-5.5HR (4 Pack)

Replace worn cells in your Liebert GXT3-1000MT120 with this brand new replacement battery set engineered for compatibility, dependable output, and long service life. This package contains four SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) designed to meet the high-rate discharge needs of modern UPS systems. If you need a reliable replacement UPS battery for the Liebert GXT3-1000MT120, these factory-fresh units provide consistent power when it matters most.

Key Specifications

  • Battery model: SigmasTek SP12-5.5HR
  • Quantity: 4 batteries per set
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (Amp-hours)
  • 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 your original configuration to connect the new UPS batteries
  • Brand: SigmasTek

Benefits

These batteries deliver robust durability and dependable performance for demanding UPS applications. The valve regulated, spill proof construction safeguards against leakage and the high vibration resistance supports stable operation in rack-mounted or mobile installations. As a high-performance UPS battery, this set supplies immediate high-current output for short durations—ideal for transfer to generator power or maintaining uptime until systems can safely shut down.

Recommended uses include Uninterruptible Power Supply (UPS) units like the Liebert GXT3-1000MT120, emergency power supply setups, and battery-powered tools requiring strong burst discharge capability. Every battery is tested to ensure it meets or exceeds OEM expectations, providing a long-lasting battery option that restores runtime and system resilience for networking gear, servers, telecom equipment, and critical medical devices.

Provided brand new with a 1 year warranty and shipped promptly from stock, this replacement solution balances quality and value. If you need assistance verifying fit or installation steps, our experienced staff is ready to help.

Don’t wait for a failure—purchase this high-performance UPS battery set for your Liebert GXT3-1000MT120 today. Call or order now to secure reliable, long-lasting battery backup.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)14.0

Product Highlights

  • Brand Replacement : Liebert GXT3-1000MT120
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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