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SigmasTek  |  SKU: BW-4396

Eaton Powerware Prestige EXT 1250 UPS High Performance Replacement Battery Set

Sale price $52.16 USD Regular price $65.88
Shipping calculated at checkout.

➤ Includes 5 brand new SigmasTek SP12-5.5HR batteries (12V 5.5AH)

➤ High rate discharge design for superior power output during short bursts

➤ Valve regulated, spill-proof construction for safe and reliable use

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

➤ Tested to meet or exceed OEM specs with 1 year warranty included


📦🚀 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 | 5.5 Ah

Terminal Type

F2

SigmasTek SP12-5.5HR Replacement Battery Set for Eaton Powerware Prestige EXT 1250

This brand new replacement UPS battery set is specially configured for the Eaton Powerware Prestige EXT 1250 and delivers reliable compatibility, dependable performance, and industry-grade reliability. The kit includes 5 SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) designed for high rate discharge UPS applications where short bursts of higher power are required. If you want a high-performance UPS battery that restores runtime and peace of mind to your Eaton Powerware Prestige EXT 1250, this set provides a cost-effective, factory-fresh option that meets or exceeds OEM expectations.

Key Specifications

  • Included batteries: 5 x SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Terminal type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility: Eaton Powerware Prestige EXT 1250 UPS unit
  • Installation note: Requires use of all existing cables and hardware from your original configuration
  • Performance note: Superior Performance for high rate discharge UPS applications

Benefits

These replacement batteries deliver durability and a long service life, making them an excellent choice when you need a long-lasting battery solution for mission-critical equipment. Built with valve-regulated, spill-proof construction and high vibration resistance, the set stands up to demanding environments and frequent cycling associated with backup power systems. Low self-discharge characteristics preserve capacity during storage, and U.L. recognition plus CE certification ensure safety and compliance in regulated installations.

As a high-performance UPS battery set, this kit restores reliable runtime and surge capability to Eaton Powerware systems. Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply setups, and battery-powered tools where dependable, short-term high discharge is required. Whether you operate a data center rack with an Eaton Powerware Prestige EXT 1250 or maintain critical telecom or medical equipment, these batteries provide the stable power output necessary to ride through outages and transitions.

Our technically savvy staff tests every replacement UPS battery set to ensure it meets or exceeds OEM specifications. This product is ideal for customers seeking a replacement UPS battery that balances superior performance with affordability while preserving the original cabling and hardware of the Eaton Powerware Prestige EXT 1250.

Ready to restore full backup capability? Buy your replacement batteries for the Eaton Powerware Prestige EXT 1250 today — orders for in-stock items typically ship within 24 hours. Choose this high-performance, long-lasting battery solution with confidence and protect your equipment now.



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