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SigmasTek  |  SKU: BW-2540

Dell 3750W X4G66 UPS Compatible Replacement Battery Set 95.93 lb

19% off
New arrival
Sale price $488.99 USD Regular price $600.99
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Includes 2 factory fresh SigmasTek SP12-9HR batteries (12V 9AH)
High rate discharge for short-term high power output
Valve regulated, spill-proof for safe operation
Low self-discharge and vibration resistant for durability
Certified quality 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 | 9 AH

Terminal Type

F2

Replacement Battery Set for Dell 3750W X4G66 UPS — SigmasTek SP12-9HR (Compatible with Dell 3750W X4G66)

Restore full backup capability to your Dell 3750W X4G66 Uninterruptible Power Supply with this replacement battery pack of 16 SigmasTek SP12-9HR batteries. Engineered for high rate discharge and reliable performance, this pack supplies the consistent power needed to maintain servers, storage, and critical infrastructure. If you want a dependable replacement UPS battery that balances performance with durability, this long-lasting battery solution is tested and ready for enterprise and commercial use.

Key Specifications

  • Compatible UPS Model: Dell 3750W X4G66
  • Battery Model: SigmasTek SP12-9HR
  • Quantity: 16 batteries per pack
  • Voltage: 12 Volts
  • Capacity: 9 AH (Amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Use all existing cables and hardware from the original configuration to connect the new UPS batteries

Benefits

  • High Capacity Pack: Sixteen batteries provide the runtime and reliability needed for Dell 3750W arrays and associated equipment, delivering extended backup during power events.
  • Reliable Performance: The high rate discharge design ensures the batteries can handle brief, high-power demands typical in UPS and emergency scenarios.
  • Built for Durability: Valve-regulated, spill-proof construction with high vibration resistance safeguards battery integrity in demanding installations.
  • Long-Term Readiness: Low self-discharge helps maintain stored capacity so the batteries are ready when needed — a true long-lasting battery choice for backup systems.
  • Safety and Compliance: U.L. recognition and CE certification provide confidence in safety and quality for commercial and data-center applications.
  • Application Versatility: Ideal for Uninterruptible Power Supply (UPS) units like the Dell 3750W X4G66, emergency power supply systems, and battery-powered tools that require a dependable, high-performance UPS battery.

Ensure continuous protection for your Dell 3750W X4G66 — order this replacement UPS battery pack now to get a high-performance UPS battery solution with long-lasting reliability and a 1 year warranty. Buy today to restore runtime and secure your systems.

Technical Specifications

Voltage12 Volts
Amp Hours9 AH
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)95.84

Product Highlights

  • Brand Replacement : Dell 3750W
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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