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SigmasTek  |  SKU: BW-5290

APC SU1000XLI UPS Reliable Replacement Battery Set 25.32 lb

24% off
New arrival
Sale price $113.99 USD Regular price $149.99
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Includes 2 brand new SigmasTek SP12-18HR batteries (12V 18AH)
High rate discharge design ideal for UPS applications
Valve regulated, spill-proof for safe and clean operation
Low self-discharge and vibration resistant for long service life
UL recognized, CE certified, and 1-year warranty included
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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.

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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.

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Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek SP12-18HR Replacement Battery Set for APC SU1000XLI

Bring your APC SU1000XLI back to full runtime capability with this reliable, factory-new replacement UPS battery set. Designed for direct compatibility and strong performance, this two-battery kit offers the high rate discharge and dependable durability necessary to protect critical equipment and reduce downtime. If you’re searching for a high-performance UPS battery that provides consistent, long-lasting service, this SigmasTek set is an ideal match for the SU1000XLI.

Key Specifications

  • Brand: SigmasTek
  • Battery Model: SP12-18HR
  • Quantity: 2 batteries per set
  • Voltage: 12 Volts
  • Capacity: 18 AH
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge
  • Features: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Use all existing cables and hardware from your original configuration to connect the new UPS batteries
  • Compatible UPS Model: APC SU1000XLI

Benefits

These SigmasTek batteries are engineered for long life, safety, and stable output. The valve-regulated, spill-proof construction minimizes maintenance and improves safety in enclosed rack or cabinet installations. Low self-discharge preserves capacity between uses while high vibration resistance enhances reliability in systems subject to mechanical stress. UL and CE certifications confirm adherence to industry standards.

As a high-performance UPS battery replacement, the SP12-18HR set is optimized for the SU1000XLI’s power profile—delivering the quick bursts of energy required during short outages and transient load conditions. Typical uses include Uninterruptible Power Supply units, emergency backup systems, and battery-powered tools that demand dependable short-term power. All units are brand new, tested to meet or exceed OEM expectations, and supported by a 1 year warranty.

Installation is straightforward: simply reuse your existing cables and hardware from the original configuration to connect these batteries. With fast shipping for in-stock items and dedicated customer support, you can minimize downtime and restore protection quickly.

Replace the batteries in your APC SU1000XLI today—order this SigmasTek replacement UPS battery set for dependable, long-lasting battery performance and fast fulfillment. Buy now to secure your backup power.

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 SU1000XLI
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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