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SigmasTek  |  SKU: BW-4563

APC SURT6KRMXL3U-TF5 UPS High Performance Replacement Battery Set 56.05 lb

21% off
New arrival
Sale price $277.99 USD Regular price $349.99
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Includes 16 SigmasTek SP12-5.5HR batteries (12V 5.5AH)
Designed for high rate discharge UPS applications
Valve regulated, spill-proof and vibration resistant design
Tested to meet or exceed OEM specifications
Backed by a 1-year warranty for peace of mind
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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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Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

Replacement Battery Set for APC SURT6KRMXL3U-TF5

Bring your APC SURT6KRMXL3U-TF5 back to peak performance with this complete replacement UPS battery set. Designed to be fully compatible with the SURT6KRMXL3U-TF5, these batteries provide reliable, consistent power to keep critical systems online during outages. If you require a high-performance UPS battery that delivers dependable emergency power and long service life, this long-lasting battery solution is an excellent fit for your UPS maintenance or replacement needs.

Key Specifications

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

Benefits

This replacement UPS battery set is optimized for durability and reliable output. The high rate discharge construction enables the pack to deliver increased power for short durations, which is particularly useful when the UPS must support heavy start-up currents or transient loads. As a high-performance UPS battery option, these cells are suitable for protecting servers, telecom gear, storage arrays, and other mission-critical equipment in data centers and IT closets.

Valve regulated, spill-proof construction enhances safety and reduces maintenance demands, while low self-discharge characteristics ensure the pack remains ready after storage. The batteries’ high vibration resistance and certifications (U.L. Recognized and CE Certified) support use in a variety of operational settings. Our technicians individually test each battery assembly to verify performance and longevity, ensuring you receive a long-lasting battery pack that meets or exceeds OEM expectations.

Applications include Uninterruptible Power Supply (UPS) units, emergency power systems, and battery powered tools—anywhere reliable temporary power is necessary. For installation, be sure to reuse the existing cables and hardware from your original SURT6KRMXL3U-TF5 configuration to ensure proper fit and connection. If you need assistance selecting the right replacement, call our knowledgeable support team at or e-mail us for help.

Protect your equipment and restore uptime by ordering this replacement UPS battery set for the APC SURT6KRMXL3U-TF5 today. Purchase now for a high-performance, long-lasting battery solution backed by a 1 year warranty and fast shipping.

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 SURT6KRMXL3U-TF5
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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