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SigmasTek  |  SKU: BW-2877

OPTI-UPS DS20KB31 UPS Compatible Replacement Battery Set 210.19 lb

24% off
New arrival
Sale price $938.99 USD Regular price $1,229.99
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Includes 40 SigmasTek SP12-7.5HR batteries (12V, 7.5 AH)
High power output for OPTI-UPS DS20KB31 UPS units
Valve regulated spill-proof construction for safety
Low self-discharge for longer battery readiness
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.

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Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for OPTI-UPS DS20KB31 UPS

Keep your OPTI-UPS DS20KB31 operating at peak reliability with this complete replacement UPS battery set. The package contains 40 SigmasTek SP12-7.5HR batteries (12 Volts, 7.5 AH) designed for high-rate discharge performance and dependable emergency support. Engineered for robust UPS operation, this high-performance UPS battery kit delivers the consistent power and safety features required for mission-critical equipment and uninterrupted power supply systems.

Key Specifications

  • Battery brand: SigmasTek
  • Battery model: SP12-7.5HR
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Quantity included: 40 batteries
  • Terminal type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Vibration resistance: 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 original configuration to connect the new UPS batteries

Benefits

This replacement set is a dependable, long-lasting battery option for the OPTI-UPS DS20KB31, offering enhanced runtime and consistent discharge behavior under heavy loads. The high rate discharge design supports higher power demand over short intervals, making it well-suited for UPS units that handle sudden load changes or require emergency backup during power events. As a high-performance UPS battery solution, these cells provide rapid response and stable output to protect sensitive electronics.

Safety and longevity are priorities: valve regulated, spill-proof construction reduces maintenance and risk, while low self-discharge ensures batteries remain ready for service even after storage. High vibration resistance and certifications like U.L. and CE demonstrate rigorous quality control. Typical applications include UPS units, emergency power supply systems, and battery-powered tools where dependable power and quick recovery are essential.

Our trained technicians test every set to meet or exceed OEM requirements. If you need help confirming compatibility with your OPTI-UPS DS20KB31 or assistance with installation guidance, call customer service at . In-stock orders usually ship within 24 hours to minimize downtime and get your systems back to reliable operation.

Ready to replace your batteries? Purchase this long-lasting, high-performance UPS battery set for the OPTI-UPS DS20KB31 now and restore confidence in your backup power.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)210.0

Product Highlights

  • Brand Replacement : OPTI-UPS DS20KB31
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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