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SigmasTek  |  SKU: BW-4587

APC SUM48RMXL2U UPS High Performance Replacement Battery Set 56.05 lb

21% off
New arrival
Sale price $277.99 USD Regular price $349.99
Shipping calculated at checkout.
Includes 16 SigmasTek SP12-5.5HR batteries (12V, 5.5 AH)
High rate discharge design for short bursts of higher power
Valve regulated, spill-proof construction for safe handling
Low self-discharge and high vibration resistance for reliability
U.L. recognized, CE certified, brand new with 1-year warranty
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🔹 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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Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

Replacement Battery Set for APC SUM48RMXL2U

Restore full runtime and dependability to your APC SUM48RMXL2U with this brand new replacement battery set. Engineered for compatibility and consistent operation, the kit contains 16 SigmasTek SP12-5.5HR batteries to deliver the power and reliability your UPS demands. Whether protecting networking equipment, storage arrays, or critical communications hardware, this replacement UPS battery pack provides a professional-grade solution to keep your systems running during outages.

Key Specifications

  • Battery set: 16 SigmasTek SP12-5.5HR batteries
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge
  • Resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility note: Use all existing cables and hardware from original configuration to connect new batteries

Benefits

This high-performance UPS battery set emphasizes durability, consistent output, and a long service life. The high rate discharge design is tailored for applications where higher power is needed for short periods, making it ideal for UPS systems that support heavy server loads or transient spikes. Valve regulated, spill proof construction enhances safety and minimizes maintenance requirements, while low self-discharge preserves charge when the UPS is idle. The robust vibration resistance ensures reliable operation in rack environments and mobile or transit situations.

Use this replacement UPS battery for Uninterruptible Power Supplies, emergency power systems, and battery-powered tools that require dependable backup power. These SigmasTek cells are tested by experienced technicians to meet or exceed OEM performance, offering you peace of mind and predictable runtime curves for critical equipment. As a long-lasting battery option, this set helps reduce frequency of replacements and overall lifecycle costs while maintaining high availability.

The APC SUM48RMXL2U benefits from this replacement kit’s consistent voltage and capacity characteristics, ensuring the UPS can continue protecting hardware and preventing data loss through power interruptions.

Don't wait—purchase this replacement UPS battery pack for the APC SUM48RMXL2U today and secure reliable, high-performance backup power for your critical systems.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)56.0

Product Highlights

  • Brand Replacement : APC SUM48RMXL2U
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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