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SigmasTek  |  SKU: BW-4384

PowerWare PRESTIGE EXT 1250 UPS High Performance Replacement Battery Set

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

➤ Replacement pack with 5 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for PowerWare PRESTIGE EXT 1250

➤ High rate discharge design delivers power when needed most

➤ Valve regulated spill-proof construction for safety and reliability

➤ Low self-discharge extends battery readiness

➤ Includes 1 year warranty and factory fresh guarantee


📦🚀 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 — PowerWare PRESTIGE EXT 1250

Keep your PowerWare PRESTIGE EXT 1250 protected with a tested, high-quality replacement UPS battery set. This kit includes five SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH), offering reliable, high rate discharge capability for UPS and emergency power applications. These batteries are factory fresh and built for dependable service life and consistent performance.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-5.5HR
  • Quantity: 5 batteries per set
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • 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
  • Terminal Type: F2
  • Compatible UPS Model: PowerWare PRESTIGE EXT 1250

Benefits

These replacement batteries provide a robust, long-lasting battery solution for the PowerWare PRESTIGE EXT 1250. The high rate discharge design ensures the unit can supply the high current bursts sometimes required during power events, making it a true high-performance UPS battery option. The valve regulated, spill-proof construction makes maintenance straightforward and safe in enclosed UPS compartments.

Low self-discharge extends shelf life and readiness, while high vibration resistance supports reliable operation in more demanding environments. U.L. recognition and CE certification ensure these batteries meet recognized safety and quality benchmarks. They are well suited for Uninterruptible Power Supply systems, emergency power supply applications, and battery-powered tools that require reliable short-term power delivery.

All replacement UPS battery sets are tested by our technical staff to confirm they meet or exceed OEM specifications for the PowerWare PRESTIGE EXT 1250. Please remember to reuse your original cables and hardware when installing the new batteries. For purchasing assistance call or e-mail our customer service team.

Secure dependable backup power—order your SigmasTek replacement battery set for the PowerWare PRESTIGE EXT 1250 now. In-stock items typically ship within 24 hours. Purchase today for a tested, long-lasting battery replacement.



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