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SigmasTek  |  SKU: BW-4584

APC Smart UPS SUM48RMXLBP2U High Performance Replacement Battery 56.05 lb

21% off
New arrival
Sale price $166.92 USD Regular price $210.81
Shipping calculated at checkout.
16 SigmasTek SP12-5.5HR batteries included (12V 5.5AH)
High rate discharge design supports high power output demands
Valve regulated, spill-proof for safe installation
Certified for quality with U.L. recognition and CE mark
Ships quickly, typically within 24 hours
In stock

— Ready to ship immediately


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Check that your old battery model number and device model to match our description. This makes sure they work together.


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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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⚠️ 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.


Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

Replacement Battery Set for APC SUM48RMXLBP2U (SigmasTek SP12-5.5HR x16)

Bring your APC SUM48RMXLBP2U Extended Battery Module back to full operating capacity with this complete replacement battery set. This kit contains 16 SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) that are factory fresh and designed for reliable performance. These batteries are built for high rate discharge applications and are suitable for UPS extensions that need dependable, repeatable power. Note: you must reuse all existing cables and hardware from your original configuration to connect the new batteries.

Key Specifications

  • Compatible Unit: APC SUM48RMXLBP2U Extended Battery Module
  • Quantity: 16 batteries
  • Battery Model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge; High Vibration Resistance; Superior Performance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year

Benefits

This replacement UPS battery set offers robust durability and long-term reliability, making it a smart choice for extended battery modules like the APC SUM48RMXLBP2U. The high rate discharge capability provides the necessary power for systems that demand higher output for short durations—perfect for backup and surge scenarios. Valve-regulated, spill-proof construction minimizes maintenance and safety concerns, while low self-discharge keeps the batteries ready when you need them.

As a high-performance UPS battery option, this kit is ideal for extended runtime solutions supporting servers, telecom equipment, and emergency power systems. High vibration resistance and recognized certifications (U.L., CE) add confidence in safety and service life, delivering a long-lasting battery replacement that helps avoid unexpected downtime. Our technicians test every set to ensure the batteries meet or exceed OEM specifications.

If you require assistance choosing or installing replacement batteries for APC SUM48RMXLBP2U, contact customer service at . In-stock orders are typically shipped within 24 hours so you can quickly restore extended runtime.

Purchase this replacement battery set for APC SUM48RMXLBP2U today and secure a dependable, long-lasting battery solution for your extended battery module.

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

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