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SigmasTek  |  SKU: BW-4599

APC SRT6KRMXLT UPS Premium Replacement Battery Set 56.05 lb

17% off
New arrival
Sale price $277.99 USD Regular price $332.99
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Brand new SigmasTek SP12-5.5HR battery (12V, 5.5 AH)
Designed for high discharge rate in UPS applications
Spill-proof valve regulated construction prevents leaks
Low self-discharge for long standby periods
Certified and backed by 1-year warranty
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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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🔹 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 SRT6KRMXLT — SigmasTek SP12-5.5HR (16-Pack)

This replacement battery set is crafted to restore and extend runtime for the APC SRT6KRMXLT UPS. With 16 brand-new SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH), the kit provides reliable compatibility, superior discharge capability, and the consistent performance required for critical backup systems. If you want a reliable, high-performance UPS battery that delivers dependable protection, this is an ideal choice.

Key Specifications

  • Quantity: 16 batteries (complete replacement set)
  • Battery Model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Terminal: F2
  • Compatible UPS Model: APC SRT6KRMXLT
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools
  • Installation Note: Use all existing cables and hardware from original configuration to connect new batteries

Benefits

Engineered for high-rate discharge use, this replacement UPS battery pack supplies the APC SRT6KRMXLT with the power it needs during short, intensive loads. The valve-regulated and spill-proof design enhances safety and reduces routine maintenance compared to flooded cells. Low self-discharge ensures batteries hold charge during storage, giving you reliable performance when called upon.

U.L. recognition and CE certification indicate these batteries meet established safety and quality benchmarks, while the high vibration resistance ensures they remain durable in transport and live deployments. As a high-performance UPS battery solution, these SigmasTek cells are suitable for server room UPS systems, emergency backup installations, and portable tool power applications where dependable energy delivery is essential.

Sold as a complete set and backed by a one-year warranty, the pack is factory fresh and hand-tested by experienced technicians to meet or exceed OEM requirements. For correct installation, retain and reuse the original cables and hardware from your APC SRT6KRMXLT setup.

Replenish your APC SRT6KRMXLT with this long-lasting, replacement UPS battery set today — order now to ensure continuous protection and restored runtime.

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 SRT6KRMXLT
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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