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SigmasTek  |  SKU: BW-4637

APC SMX3KRMLVNCUS UPS High Performance Replacement Battery Set 35.03 lb

21% off
New arrival
Sale price $189.99 USD Regular price $239.99
Shipping calculated at checkout.
Includes 10 new SigmasTek SP12-5.5HR batteries (12V 5.5AH)
Replacement for APC SMX3KRMLVNCUS UPS units
Valve regulated, spill-proof for secure and maintenance-free use
Low self-discharge ensures battery longevity and readiness
Factory tested and comes with a 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.

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Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

SigmasTek SP12-5.5HR Replacement Battery Set for APC SMX3KRMLVNCUS UPS

Restore dependable backup power to your APC SMX3KRMLVNCUS with this complete replacement UPS battery set. Designed for reliability and tested for performance, the kit contains ten SigmasTek SP12-5.5HR batteries (12 Volt, 5.5 AH) to deliver consistent output and low self-discharge for critical applications. These batteries are an excellent choice when you need a high-performance UPS battery to maintain uptime and protect sensitive equipment.

Key Specifications

  • Includes: 10 SigmasTek SP12-5.5HR batteries
  • Battery Model: SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (Amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Requires existing cables and hardware from original configuration

Benefits

Built for durability and steady performance, this replacement battery set offers long life and dependable operation under the demands of UPS service. The high rate discharge design ensures the pack can supply peak current when the APC SMX3KRMLVNCUS needs it most, while valve regulated, spill-proof construction minimizes maintenance and improves safety. Low self-discharge characteristics help preserve capacity during standby, and high vibration resistance prevents premature failure in rack or transit environments.

As a long-lasting battery solution, this set is ideal for uninterruptible power supply units, emergency power backup, and compatible battery-powered tools. Certified by U.L. and CE, the batteries meet recognized safety and performance standards appropriate for commercial and mission-critical installations. Each cell ships brand new and factory tested to ensure compatibility and reliable performance with the APC SMX3KRMLVNCUS.

Our technical team personally inspects and tests these batteries to ensure they meet or exceed OEM specifications. Keep in mind that you will need to reuse your UPS’s original cables and hardware to complete installation. This kit delivers a cost-effective way to restore runtime and protect equipment with a high-performance UPS battery option.

Don’t wait until battery failure affects your operations. Buy this replacement UPS battery pack for the APC SMX3KRMLVNCUS today and take advantage of fast shipping and a 1 year warranty. Order now to secure reliable backup power.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)35.0

Product Highlights

  • Brand Replacement : APC SMX3KRMLVNCUS
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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