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SigmasTek  |  SKU: BW-3257

Liebert GXT-1000RT-120 UPS High Performance Replacement Battery Set

Sale price $49.99 USD Regular price $72.42
Shipping calculated at checkout.

➤ Replacement set includes 3 SigmasTek SP12-7.5HR batteries (12V 7.5AH) for Liebert GXT-1000RT-120

➤ High rate discharge design delivers reliable power during outages

➤ Valve regulated and spill proof for safe, maintenance-free operation

➤ Tested to exceed OEM standards for superior performance

➤ Fast shipping and backed by a 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.
🔹 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

SigmasTek SP12-7.5HR Replacement Battery Set for Liebert GXT-1000RT-120

Restore dependable backup power with this replacement UPS battery set tailored for the Liebert GXT-1000RT-120. Each package contains three SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) engineered to provide consistent performance, low self-discharge, and reliable operation for your UPS system. Designed as a drop-in replacement for the Liebert GXT-1000RT-120, these brand-new batteries are factory tested to meet or exceed OEM expectations.

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 GXT-1000RT-120

Benefits

  • Durability: Robust valve-regulated design prevents spills and tolerates vibration, ensuring long-term, safe performance in data center racks and office environment installations.
  • Long life: Low self-discharge preserves capacity during standby periods so this long-lasting battery remains ready for service when installed in your UPS.
  • High performance: The high rate discharge capability supplies the surge power necessary for brief, intensive loads—ideal for protecting servers and critical electronics.
  • Reliability: U.L. and CE certifications combined with factory testing mean predictable, OEM-comparable runtime and reduced risk of unexpected failures.
  • Applications: Perfect for Uninterruptible Power Supply (UPS) units, emergency power backup systems, and battery-powered tools requiring dependable short-term output.
  • Installation note: Use the existing cables and hardware from your original configuration to connect these replacement batteries to your Liebert GXT-1000RT-120.

This SigmasTek replacement UPS battery set for the Liebert GXT-1000RT-120 gives you a practical, cost-effective way to maintain continuous protection with a high-performance UPS battery that’s backed by a one-year warranty and shipped quickly from stock.

Restore your UPS performance today—order this replacement UPS battery set for the Liebert GXT-1000RT-120 now and ensure uninterrupted power for your critical systems.


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