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SigmasTek  |  SKU: BW-5276

APC SMART-UPS SU1000XL UPS High Performance Replacement Battery Set 25.32 lb

21% off
New arrival
Sale price $69.49 USD Regular price $87.77
Shipping calculated at checkout.
Includes 2 brand new SigmasTek SP12-18HR batteries (12V, 18 AH)
High rate discharge design ideal for UPS units requiring quick power delivery
Spill-proof valve regulated build ensures safe operation in any orientation
Certified for quality with U.L. recognition and CE compliance
1-year warranty and factory fresh for dependable replacement power
In stock

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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek SP12-18HR Replacement Battery Set for APC SMART-UPS SU1000XL

Restore full runtime and dependable protection for your APC SMART-UPS SU1000XL with this brand new replacement UPS battery set. Engineered for compatibility and reliable performance, these two SigmasTek SP12-18HR (12 Volts, 18 AH) batteries are a high-performance UPS battery option designed to deliver the short-term, high power output your SU1000XL requires during outages. Tested by our technical staff and built to factory-fresh standards, this replacement UPS battery set offers the reliability and long-lasting battery life you expect from a premium replacement.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-18HR (set of 2)
  • Voltage: 12 Volts
  • Capacity: 18 AH
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Compatibility: APC SMART-UPS SU1000XL (use existing cables and hardware)

Benefits

This replacement set delivers exceptional durability and dependable service life for demanding UPS applications. The high rate discharge design is optimized for scenarios where the APC SMART-UPS SU1000XL needs a burst of higher power over a short period—making this a high-performance UPS battery choice. Valve regulated, spill-proof construction and high vibration resistance increase safety and longevity, while low self-discharge helps preserve charge during storage, ensuring the batteries are ready when you need them.

Choose these SigmasTek batteries for a long-lasting battery upgrade that supports critical systems, including uninterruptible power supply units, emergency power systems, and battery-powered tools. The U.L. recognition and CE certification reflect manufacturing quality and safety compliance, and the brand-new, factory-fresh condition ensures consistent performance out of the box.

Installation is straightforward when replacing your APC SMART-UPS SU1000XL battery pack—please reuse the original cables and hardware from your UPS for proper connection. Our technicians personally test each battery set to meet or exceed OEM specifications, so you can expect consistent runtime and dependable backup power.

Ready to upgrade? Buy this SigmasTek replacement UPS battery set for your APC SMART-UPS SU1000XL now and secure a high-performance, long-lasting battery solution. Orders for in-stock items typically ship within 24 hours — purchase with confidence today!

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)25.3

Product Highlights

  • Brand Replacement : APC SMART-UPS
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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