For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-5192

APC SUA1500US Compatible Replacement Battery

Sale price $77.60 USD Regular price $112.53
Shipping calculated at checkout.

➤ Replacement 24V 18AH battery for APC SUA1500US UPS units

➤ High rate discharge battery for reliable UPS backup power

➤ Factory fresh and tested to OEM specs with warranty included

➤ Same day shipping and knowledgeable customer service


📦🚀 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.

📸 Send Your Battery Photo / Unsure? Expert Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR IMAGE

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

24 Volts | 18 Ah

Terminal Type

Special Connector

SigmasTek Replacement Battery for APC SUA1500US

Restore the reliability of your APC SUA1500US with this SigmasTek replacement UPS battery. Designed for compatibility and peak performance, this unit provides the voltage and capacity required for high-rate discharge UPS applications where short-duration high power output is necessary. Brand new and factory tested, this replacement UPS battery gives you a reliable, long-lasting battery option to maintain uninterrupted operation for your critical systems.

Key Specifications

  • Compatible UPS Model: APC SUA1500US
  • Brand: SigmasTek
  • Voltage: 24 Volts
  • Capacity: 18 AH
  • Quantity: 1 battery
  • Connector: Special Connector
  • Design: High Rate Discharge Design
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Shipping: In Stock and Same Day Shipping
  • Installation Note: You must use the existing cables and hardware to connect your UPS batteries
  • Support: Professional Customer Support
  • Performance: Performance Guaranteed; tested to meet or exceed OEM specifications

Benefits

As a high-performance UPS battery, this replacement is engineered to deliver consistent, reliable power when your APC SUA1500US needs it most. The high rate discharge design ensures the battery can supply elevated current for short durations—ideal for handling surges and heavy loads during power disturbances. The result is reduced risk of downtime for servers, networking gear, and business-critical electronics.

This long-lasting battery ships in-stock and is factory fresh, helping you minimize downtime with fast same-day dispatch. Backed by a one-year warranty and professional customer support, it’s a secure choice for emergency power, UPS maintenance, and applications that demand quick, reliable response from the battery. The personal testing process ensures each unit meets performance expectations and OEM-equivalent reliability.

Typical applications include home and office UPS systems, small data centers, telecom closets, and power tool charging systems that depend on steady backup power. The replacement UPS battery is designed for straightforward integration—use your existing cables and hardware to install and get your APC SUA1500US back to full operation.

Don’t wait—purchase this high-performance UPS battery for your APC SUA1500US today. Benefit from fast shipping, expert support, and a dependable 1 year warranty to protect your critical equipment.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.