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SigmasTek  |  SKU: BW-15443

Universal Power UB1250 (D5741) High Performance Replacement Battery

Sale price $11.99 USD Regular price $17.28
Shipping calculated at checkout.

➤ Compatible replacement for Universal Power UB1250 (D5741) model

➤ Advanced Absorbent Glass Mat (AGM) technology for reliable performance

➤ Maintenance-free and spill-proof design for safe, hassle-free use

➤ U.L. Recognized and CE Certified for safety and quality assurance

➤ Brand new, factory fresh with a 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 AH

Terminal Type

F1

Universal Power UB1250 (D5741) Replacement Battery — Compatible with Universal Power UB1250 (D5741)

This replacement battery is specifically designed for the Universal Power UB1250 (D5741) and delivers reliable performance, consistent power output, and dependable service life. Whether you need a standby power source or a maintenance-free energy solution, the Universal Power UB1250 (D5741) replacement battery provides OEM-level compatibility and assurance. As a high-quality replacement battery, it offers the dependable characteristics you expect from a high-performance battery and the peace of mind of a long-lasting battery built to work seamlessly with your equipment.

Key Specifications

  • Compatible Model: Universal Power UB1250 (D5741)
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 5 AH
  • Terminal Type: F1
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Brand: SigmasTek
  • Warranty: 1 Year Warranty
  • Meets or exceeds OEM SLA battery specifications

Benefits

Built with Absorbent Glass Mat (AGM) technology, this Universal Power UB1250 (D5741) replacement battery delivers superior charge acceptance and low self-discharge for reliable standby and cyclic performance. AGM construction provides spill-proof safety and a maintenance-free experience, making this a convenient choice for both consumer and professional uses. As a high-performance battery, it is engineered to sustain stable output under load and tolerate repeated charging cycles, helping extend runtime and reduce replacement frequency.

Durability and consistent performance are core to this replacement battery. The sealed SLA design reduces leakage risk and protects internal components, while UL recognition and CE certification confirm compliance with safety and quality standards. The SigmasTek 12V 5AH unit is compact yet robust, making it suitable where space is limited but reliable power is essential. Expect reliable starts, steady backup, and predictable behavior over its service life.

Typical applications for this long-lasting battery include UPS systems, emergency lighting and exit signs, alarm and security systems, medical devices, portable tools, and other backup power solutions. Its maintenance-free nature means minimal monitoring is required, and the F1 terminal ensures straightforward installation in compatible devices. Whether replacing an aging battery or stocking spares for critical systems, this unit is an excellent choice for maintaining uptime.

Ready to restore dependable power? Order this Universal Power UB1250 (D5741) replacement battery now and enjoy the performance and reliability of a true high-performance battery with a 1-year warranty. Click to purchase and secure a long-lasting battery solution for your equipment today.



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