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SigmasTek  |  SKU: BW-2416

Liebert GXT3-2000RT120 UPS High Performance Compatible Replacement Battery Set

Sale price $98.99 USD Regular price $144.91
Shipping calculated at checkout.

➤ Set of 4 brand new SigmasTek SP12-9HR batteries (12V 9AH)

➤ High rate discharge for Liebert GXT3-2000RT120 UPS units

➤ Valve regulated, spill-proof design for safety

➤ Low self-discharge and high vibration resistance

➤ Certified quality 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.
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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 | 9 AH

Terminal Type

F2

SigmasTek SP12-9HR Replacement Battery Set for Liebert GXT3-2000RT120 UPS

Restore full runtime and peak performance for your Liebert GXT3-2000RT120 with this factory-fresh replacement UPS battery set. Designed specifically for high rate discharge UPS systems, this SigmasTek replacement UPS battery kit delivers reliable power when you need it most — whether for graceful shutdowns, critical load support, or emergency backup. Built for performance and tested to meet or exceed OEM expectations, these batteries offer dependable, long-lasting battery life and consistent output to keep your Liebert GXT3-2000RT120 operating at optimal levels.

Key Specifications

  • Includes: 4 x SigmasTek SP12-9HR batteries
  • Voltage: 12 Volts
  • Capacity: 9 AH (9 Amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof Construction
  • Features: 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 to connect the new UPS batteries
  • Compatible UPS Model: Liebert GXT3-2000RT120
  • Brand: SigmasTek

Benefits

This SigmasTek SP12-9HR replacement UPS battery kit is engineered for durability and high performance. The high rate discharge design supplies greater power over short durations, making it ideal for UPS units that must support heavy inrush currents or provide rapid, stable output during mains interruptions. Valve regulated, spill proof construction and low self-discharge characteristics extend shelf life and reduce maintenance needs — essential qualities of a long-lasting battery.

High vibration resistance and recognized safety certifications (U.L. and CE) mean you get a reliable, robust power source suitable for demanding environments. The brand-new, factory-fresh condition ensures predictable performance and consistent runtime compared to aging OEM packs.

  • Durability: Robust construction and vibration resistance for reliable service life.
  • Long Life: Low self-discharge helps maintain capacity during standby periods.
  • High Performance: High rate discharge capability for UPS systems requiring bursts of power.
  • Typical Applications: Uninterruptible Power Supply (UPS) units, emergency power supply, battery-powered tools.

This high-performance UPS battery set is the perfect replacement for your Liebert GXT3-2000RT120. If you’re looking for a reliable, long-lasting battery solution that restores UPS runtime and reliability, buy this replacement UPS battery set today and experience confident backup power when it matters most.


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