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SigmasTek  |  SKU: BW-4411

ONEAC ON1500XIU-SN UPS Compatible Replacement Battery Set

Sale price $41.73 USD Regular price $52.70
Shipping calculated at checkout.

➤ Includes 4 brand new 12V 5.5AH SigmasTek batteries for ONEAC ON1500XIU-SN UPS

➤ High rate discharge design supports quick power delivery

➤ Valve regulated spill-proof batteries reduce maintenance

➤ Low self-discharge for extended shelf life

➤ Certified safety and performance with 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 | 5.5 Ah

Terminal Type

F2

Replacement SigmasTek SP12-5.5HR Battery Set for ONEAC ON1500XIU-SN UPS

Restore full runtime and peak performance with this compatible replacement UPS battery set for the ONEAC ON1500XIU-SN. Designed for reliable compatibility, these brand new SigmasTek SP12-5.5HR batteries deliver dependable performance in high-rate discharge UPS systems where short bursts of higher power are required. Whether you need a replacement UPS battery to maintain critical infrastructure or a high-performance UPS battery to support sensitive equipment, this kit offers quality, safety certifications, and the reliability your ONEAC ON1500XIU-SN expects.

Key Specifications

  • Included Quantity: 4 batteries (battery set)
  • Battery Model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (amp-hours)
  • Terminal Type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-Discharge: Low Self-discharge
  • Resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Note: Use all existing cables and hardware from original configuration to connect new UPS batteries
  • Intended Use: Replacement for ONEAC ON1500XIU-SN Uninterruptible Power Supply (UPS)

Benefits

These SigmasTek batteries are built for durability and dependable service in demanding UPS and emergency power applications. The valve regulated, spill-proof construction minimizes maintenance while maximizing safety, making this kit a long-lasting battery solution for both home and commercial environments. Low self-discharge ensures the batteries hold charge during storage and standby, extending useful life and readiness when power interruptions occur.

The high rate discharge design provides the extra output needed for load surges and short-duration heavy draws, so your ONEAC ON1500XIU-SN can support critical equipment without compromising stability. High vibration resistance makes the set suitable for installations exposed to movement or mechanical stress. Certified to U.L. and CE standards, these batteries meet recognized safety and performance benchmarks, offering peace of mind for IT closets, small data centers, and industrial applications.

Typical applications include Uninterruptible Power Supply (UPS) systems, Emergency Power Supply configurations, and battery powered tools that require rapid energy delivery. Technically trained staff test each battery set to ensure they meet or exceed OEM specifications, so you get a high-performance UPS battery that’s ready to install and perform.

Buy this replacement UPS battery set for your ONEAC ON1500XIU-SN today and restore reliable runtime and performance. Orders for in-stock items typically ship within 24 hours—purchase now to secure a long-lasting battery with a 1 year warranty.



Payment & Security

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