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SigmasTek  |  SKU: BW-4494

Unison PS4.5 UPS High Performance Replacement Battery Set 7.01 lb

13% off
New arrival
Sale price $41.99 USD Regular price $47.99
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Comes with 2 brand new SigmasTek SP12-5.5HR batteries (12V 5.5AH)
High rate discharge ideal for smaller UPS units
Valve regulated, spill-proof for safe and clean operation
Low self-discharge extends battery life during inactivity
Certified by U.L. and CE with 1 year warranty included
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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

SigmasTek SP12-5.5HR Replacement Battery Set for Unison PS4.5

Specifically matched to the Unison PS4.5 UPS unit, this replacement UPS battery pack includes two SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) to restore reliable backup power. These batteries combine compatibility, safety certifications, and a performance-focused high rate discharge design to provide a dependable, long-lasting battery solution for your Unison PS4.5.

Key Specifications

  • Battery Model: SigmasTek SP12-5.5HR
  • Quantity: 2 batteries included
  • 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
  • Compatibility: Designed for Unison PS4.5 UPS
  • Installation Note: Use all existing cables and hardware from original configuration to connect the new UPS batteries

Benefits

  • Long-Term Reliability — The valve-regulated, spill-proof construction and low self-discharge properties ensure these batteries remain reliable over storage and service life, providing you with a long-lasting battery option for the Unison PS4.5.
  • High Rate Discharge Capability — Ideal as a high-performance UPS battery, this pack supplies the necessary surge capacity and short-duration power required by UPS transfers and emergency events to keep critical equipment running.
  • Rugged and Certified — With high vibration resistance and recognized safety certifications (U.L. and CE), these batteries are suitable for professional environments and meet compliance expectations for many installations.
  • Multi-Purpose Applications — Recommended for Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools that require reliable, immediate power delivery.
  • Quality Assurance — Each unit ships brand new and factory tested to meet or exceed OEM specifications, giving you confidence that your Unison PS4.5 will be protected by a tested, high-quality replacement UPS battery.

Take action now to replace aging batteries in your Unison PS4.5. Order these tested, high-performance replacement UPS batteries today and benefit from prompt shipping and a one-year warranty. Buy now to ensure continuous protection 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.)7.0

Product Highlights

  • Brand Replacement : Unison PS4.5
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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