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SigmasTek  |  SKU: BW-5198

APC SU1400X145 Compatible Replacement Battery

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

➤ Replacement battery for APC SU1400X145 UPS, 24V 18AH

➤ High rate discharge design for reliable UPS performance

➤ Factory fresh and guaranteed to meet OEM specifications

➤ Fast shipping and professional customer service 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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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.
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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

24 Volts | 18 Ah

Terminal Type

Special Connector

Replacement APC SU1400X145 Battery - SigmasTek 24V 18Ah (Compatible with APC SU1400X145)

Designed specifically for the APC SU1400X145, this brand new replacement UPS battery offers the compatibility, performance, and reliability required to maintain continuous protection for your critical systems. Whether you need to restore runtime for a server rack, network hardware, or emergency systems, this unit provides a high-performance UPS battery solution tested to meet stringent standards.

Key Specifications

  • Quantity: 1 battery included
  • Voltage: 24 Volts
  • Capacity: 18 AH (amp-hours)
  • Brand: SigmasTek
  • Terminal type: Special Connector
  • Compatibility: APC SU1400X145
  • Design: High Rate Discharge Design
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed (tested to meet or exceed OEM specifications)
  • Shipping: In Stock and Same Day Shipping
  • Support: Professional Customer Support
  • Warranty: 1 Year Warranty
  • Installation note: Must use existing cables and hardware to connect your UPS batteries

Benefits

Built with a high rate discharge focus, this replacement UPS battery is ideal for delivering reliable power when short bursts of higher output are necessary. The unit’s construction and factory testing ensure a long-lasting battery life and steady performance, helping preserve uptime for servers, telecom gear, and essential infrastructure.

Common applications include UPS backup for small-to-medium enterprise equipment, emergency lighting and power, and support for critical workstations and networking devices. As a high-performance UPS battery, it handles transient high loads effectively, making it suitable for environments that demand immediate, robust backup energy. Professional customer support and a guaranteed performance standard add confidence to every purchase.

This replacement is sold in-stock with same-day shipping for available units, and every battery is backed by a 1 year warranty. Installation is straightforward when you reuse the existing cables and hardware from your APC SU1400X145 unit.

Purchase this long-lasting battery replacement for the APC SU1400X145 today — secure a reliable, high-performance UPS battery with fast shipping and dedicated support. Order now to protect your systems.


Payment & Security

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