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SigmasTek  |  SKU: BW-2841

Liebert GXT2 3000RT120 UPS High Performance Replacement Battery Set

Sale price $98.99 USD Regular price $144.87
Shipping calculated at checkout.

➤ Includes 6 brand new SigmasTek SP12-7.5HR batteries, 12 Volts 7.5 AH

➤ High rate discharge design for optimal UPS performance

➤ Valve regulated, spill-proof construction for safe operation

➤ Low self-discharge and high vibration resistance for long-lasting reliability

➤ U.L. recognized, CE certified with 1 year warranty for peace of mind


📦🚀 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.

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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 | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for Liebert GXT2 3000RT120 UPS (6 x SigmasTek SP12-7.5HR, 12V 7.5AH)

Upgrade the runtime and reliability of your Liebert GXT2 3000RT120 with this brand new replacement UPS battery set. Designed specifically for high rate discharge UPS applications, this kit includes 6 SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) to restore your UPS to dependable service. These batteries deliver consistent performance and are factory fresh, making them an ideal, cost-effective option when you need a high-performance UPS battery and a long-lasting battery solution for mission-critical equipment. Please note: you must use all existing cables and hardware from your original configuration to connect the new batteries.

Key Specifications

  • Battery Count: 6
  • Brand / Model: SigmasTek SP12-7.5HR
  • Voltage: 12 Volts
  • Capacity: 7.5 AH (amp-hours)
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: Liebert GXT2 3000RT120

Benefits

  • Durability — Built with valve regulated, spill-proof construction and high vibration resistance to withstand rack-mounted UPS environments and transport.
  • High performance — The high rate discharge design delivers the extra surge power demanded by the Liebert GXT2 3000RT120 during transfers and emergency events, making this a true high-performance UPS battery solution.
  • Long life and reliability — Low self-discharge chemistry and factory-fresh condition help ensure a long-lasting battery life in standby and active discharge scenarios for your UPS and emergency power systems.
  • Safety and compliance — U.L. Recognized and CE Certified for peace of mind in professional installations.
  • Tested to meet OEM standards — Technically trained staff individually test each battery set to ensure it meets or exceeds OEM specifications for the Liebert GXT2 3000RT120.
  • Versatile applications — Ideal for Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools that require dependable short-term high output.
  • Easy replacement — This kit is sold as the battery set; reuse your existing cables and hardware for a straightforward swap into the Liebert GXT2 3000RT120 chassis.

If you're ready to restore full runtime and dependable performance to your Liebert GXT2 3000RT120, buy this replacement UPS battery set now. Order today and take advantage of fast shipping and a 1 year warranty for a reliable, long-lasting battery solution.


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