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SigmasTek  |  SKU: BW-4711

CyberPower SL 425SL High Performance Compatible SLA Replacement Battery 3.5 lb

12% off
New arrival
Sale price $29.99 USD Regular price $33.99
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High Rate Discharge Design for quick power delivery
Valve Regulated Spill Proof Construction ensures safety and durability
Low Self-discharge for longer shelf life and readiness
High Vibration Resistance for reliable performance in tough conditions
U.L. Recognized and CE Certified 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

SigmasTek SP12-5.5HR Replacement for CyberPower SL 425SL

Upgrade your CyberPower SL 425SL with this brand new SigmasTek SP12-5.5HR replacement UPS battery. Designed for reliable performance and engineered for high-rate discharge situations, this replacement UPS battery provides dependable backup power when you need it most. Whether you’re safeguarding servers, protecting home office equipment, or maintaining emergency systems, this high-performance UPS battery is a cost-effective, long-lasting battery solution that meets or exceeds OEM expectations.

Key Specifications

  • Compatible UPS Model: CyberPower SL 425SL
  • Brand: SigmasTek
  • Model: SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Battery Type: Sealed Lead Acid (SLA)
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated, Spill Proof
  • Features: Low Self-discharge; High Vibration Resistance; Superior Performance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Installation Note: Use all existing cables and hardware from your original configuration

Benefits

This SigmasTek replacement is built for durability and consistent high output. The high-rate discharge design delivers the extra power required for brief, intense draw periods while valve-regulated, spill-proof construction ensures safe, maintenance-free operation. Low self-discharge and high vibration resistance extend usable life and reliability, making this a truly long-lasting battery for everyday UPS demands. U.L. recognition and CE certification confirm quality manufacturing standards for safety and performance.

As a high-performance UPS battery, it’s ideal for uninterruptible power supply units, emergency power systems and battery-powered tools that require short bursts of elevated power. Technically tested to meet or exceed OEM specifications, this replacement UPS battery ensures your CyberPower SL 425SL returns to peak reliability without costly downtime. Because it’s brand new and factory fresh, you’ll get consistent, predictable runtime and the peace of mind that comes with a one year warranty.

If you need personalized assistance choosing the right replacement battery for your CyberPower SL 425SL, our customer service team is available at . Orders for in-stock items typically ship within 24 hours, so you can restore protection quickly.

Ready to replace your CyberPower SL 425SL battery? Purchase this SigmasTek SP12-5.5HR replacement UPS battery today for a reliable, long-lasting battery solution and fast shipping.

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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