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SigmasTek  |  SKU: BW-4704

CyberPower CPS425SL High Performance Compatible SLA Replacement Battery 3.5 lb

9% off
New arrival
Sale price $29.99 USD Regular price $32.99
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Replacement set with 16 SigmasTek SP12-5.5HR batteries (12V, 5.5 AH)
Designed to deliver high power output in UPS systems
Valve regulated spill-proof construction for safety
Low self-discharge and high vibration resistance
Factory fresh with 1-year warranty included
In stock

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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 for CyberPower CPS425SL

Restore full backup capability to your CyberPower CPS425SL with the SigmasTek SP12-5.5HR replacement UPS battery. This unit provides compatibility, robust output, and the protective construction necessary for reliable UPS operation. Designed for applications requiring high rate discharge performance, it keeps your CPS425SL ready to respond to outages, surges, and other power events with dependable reserve power.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Terminal: F2
  • Battery Type: SLA (Sealed Lead Acid)
  • 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
  • Compatible With: CyberPower CPS425SL UPS units

Benefits

This SigmasTek replacement offers long-lasting battery life and resilient performance under challenging conditions. The sealed, valve-regulated construction reduces maintenance and prevents spills, while the low self-discharge chemistry maintains capacity during periods of inactivity. The battery’s high vibration resistance and certified safety profile (U.L. and CE) ensure it is suitable for professional and consumer UPS applications alike.

As a high-performance UPS battery, the SP12-5.5HR excels when the CPS425SL needs instantaneous power delivery for short durations—such as during transfer events, multiple device startups, or emergency shutdowns. It is ideal for Uninterruptible Power Supply (UPS) systems, emergency power supply installations, and portable battery-powered tools that demand a compact, reliable power source.

Each unit arrives brand new, factory tested to meet or exceed OEM specifications, and is backed by a one-year warranty for added peace of mind. This replacement is an efficient, cost-effective way to maintain protection for your critical devices and infrastructure.

Don't risk downtime—order the SigmasTek SP12-5.5HR replacement UPS battery for your CyberPower CPS425SL today and secure reliable, long-lasting 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.)3.5

Product Highlights

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

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