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SigmasTek  |  SKU: BW-4462

APC Smart XL 2U SUM48RMXLBP2U High Performance UPS Replacement Battery Set 112.1 lb

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New arrival
Sale price $591.99 USD Regular price $697.99
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Includes 32 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for APC SUM48RMXLBP2 UPS
Designed for high rate discharge to support emergency power needs
Spill-proof, valve regulated construction for maintenance-free use
Tested to meet or exceed OEM specifications for quality assurance
Comes with 1-year warranty and fast shipping from 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.

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Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

Replacement Battery Set for APC SUM48RMXLBP2U - SigmasTek SP12-5.5HR (32-Pack)

Restore full functionality to your APC SUM48RMXLBP2U with this purpose-built replacement UPS battery set featuring 32 SigmasTek SP12-5.5HR cells. Engineered for dependable performance and compatibility, this pack delivers the power stability required for UPS systems, emergency power applications, and battery-operated tools. Remember to reuse your existing cables and hardware from the original configuration to connect the new batteries securely.

Key Specifications

  • Quantity: 32 batteries
  • Brand: SigmasTek
  • Battery model: SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Terminal type: F2
  • 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 Warranty
  • Compatible UPS model: APC SUM48RMXLBP2U

Benefits

This high-performance UPS battery option is built for longevity and consistent operation. The high rate discharge capability provides the rapid power delivery needed during short-duration, high-load events — making it an excellent fit for UPS applications where surge capacity is critical. Valve regulated, spill-proof construction reduces maintenance and improves safety, while low self-discharge rates help preserve stored energy during standby periods so your system is ready when needed.

Robust vibration resistance enhances durability in cabinet and rack environments, protecting the internal cells from mechanical stress that can shorten service life. With U.L. recognition and CE certification, these SigmasTek batteries meet recognized safety and quality benchmarks. The pack is factory fresh and individually tested to ensure it meets or exceeds OEM expectations, giving you confidence in a long-lasting battery solution for your APC SUM48RMXLBP2U.

Typical applications include uninterruptible power supply units, emergency backup systems, and battery-powered tools. If you need guidance selecting the right replacement UPS battery, our knowledgeable support team is available to help.

Don’t wait for a failure — buy this replacement UPS battery pack for your APC SUM48RMXLBP2U today and secure immediate, reliable power protection with a long-lasting battery solution.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)112.0

Product Highlights

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

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