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SigmasTek  |  SKU: BW-1061

APC SUA3000XLT High Performance Replacement Battery By SigmasTek

Sale price $155.20 USD Regular price $219.86
Shipping calculated at checkout.

➤ High performance 12V 18Ah battery for reliable power

➤ Meets or exceeds OEM specifications for APC SUA3000XLT

➤ Durable SigmasTek brand ensures long-lasting use

➤ NB terminals for easy and secure installation


📦🚀 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 | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek Replacement Battery for APC SUA3000XLT

Keep your APC SUA3000XLT performing at peak reliability with this SigmasTek replacement UPS battery. Engineered for compatibility, dependable performance, and consistent uptime, this 12-volt 18 amp-hour battery is an ideal swap for worn or aged cells in your APC SUA3000XLT. Whether you manage a server rack, critical IT infrastructure, or a home lab, this high-performance UPS battery provides the steady, dependable power your equipment needs during outages and brownouts.

Key Specifications

  • Brand: SigmasTek
  • Compatibility: APC SUA3000XLT
  • Voltage: 12 Volts
  • Capacity: 18 Ah (Amp-hours)
  • Terminal Type: NB (Nut & Bolt)
  • Meets or exceeds OEM specifications

Benefits

This replacement UPS battery delivers the durability and long life you expect from premium replacement cells. The 12V 18Ah chemistry in a SigmasTek battery is designed for steady discharge, reliable recharge cycles, and consistent performance under load — making it an excellent long-lasting battery solution for critical backup systems. As a high-performance UPS battery replacement for the APC SUA3000XLT, it reduces the risk of unexpected downtime and supports fast recovery after power events.

Typical applications include UPS systems, emergency power backup, server rooms, telecom equipment, and power tools that may rely on uninterrupted power for safe shutdowns. The NB nut-and-bolt terminals provide a secure mechanical and electrical connection, simplifying installation while minimizing the chance of loose contacts in high-vibration environments. Because it meets or exceeds OEM specifications, you can trust this SigmasTek unit to replicate the original performance of your APC SUA3000XLT.

Looking for a replacement UPS battery that balances cost, reliability, and compatibility? This SigmasTek battery is built to deliver dependable service life and maintain your APC SUA3000XLT’s protection during power interruptions. Its robust construction and tested capacity make it a smart choice for both professional and home users who require uninterrupted operation.

Ready to restore full backup capability to your APC SUA3000XLT? Order this SigmasTek high-performance UPS battery today to secure a long-lasting battery solution and enjoy continued protection for your critical equipment.


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