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SigmasTek  |  SKU: BW-4633

Compaq AF423A UPS Compatible Replacement Battery Set 35.03 lb

16% off
New arrival
Sale price $189.99 USD Regular price $225.99
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Includes 10 new SigmasTek SP12-5.5HR batteries (12V 5.5AH)
Replacement set for Compaq AF423A UPS units
Valve regulated, spill-proof for maintenance-free and safe use
Low self-discharge technology for extended battery life
Certified and guaranteed with 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

Replacement Battery Set for Compaq AF423A UPS (10 x SigmasTek SP12-5.5HR)

Keep your Compaq AF423A Uninterruptible Power Supply operating at peak reliability with this complete replacement UPS battery set. Designed for demanding, high-rate discharge requirements, the SigmasTek SP12-5.5HR batteries provide steady, dependable power where it matters most. Ideal for data centers, telecommunications, and emergency backup systems, this kit gives you a high-performance UPS battery option that balances safety, performance, and value.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-5.5HR
  • Quantity: 10 batteries (complete set)
  • Voltage: 12 Volts
  • Capacity: 5.5 Ah (amp-hours)
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge; High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: Compaq AF423A

Benefits

These replacement batteries offer robust, long-lasting battery performance for the Compaq AF423A. The high-rate discharge design ensures the pack can supply high current bursts necessary for short-duration, high-demand events without sacrificing reliability. Valve-regulated, spill-proof construction reduces maintenance and improves safety inside UPS cabinets, while low self-discharge keeps the pack ready for service after storage or infrequent use.

Whether your application is Uninterruptible Power Supply (UPS) backup, emergency power, or powering battery-operated tools during a outage, this kit delivers the dependable output you need. The U.L. recognition and CE certification reinforce the quality and compliance of these cells, and the high vibration resistance increases survivability in less-than-ideal environments. Our technical team tests every set to ensure compatibility and performance that meets or exceeds OEM standards.

Note: to install this replacement UPS battery set you must reuse the existing cables and hardware from your original AF423A configuration. For questions about fitment or installation, contact our customer support for timely assistance and expert advice.

Choose reliability and value—order this high-performance, long-lasting battery replacement for the Compaq AF423A today and protect your equipment with proven 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 : Compaq AF423A
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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