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SigmasTek  |  SKU: BW-4765

Best Technologies Unity UT4K UPS Compatible Replacement Battery Set 98.89 lb

14% off
New arrival
Sale price $459.99 USD Regular price $537.99
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Replacement set of 4 SigmasTek SP12-35 NB batteries
High rate discharge ideal for short bursts of power
Low self-discharge extends battery life storage
U.L. Recognized and CE Certified for safety
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 | 35 AH

Terminal Type

Nut & Bolt

SigmasTek SP12-35 NB Replacement Battery Set for Best Technologies Unity UT4K UPS

Ensure continuous protection for your Best Technologies Unity UT4K Uninterruptible Power Supply with this set of four SigmasTek SP12-35 NB replacement batteries. Designed for trustworthy performance in UPS systems, this high-performance UPS battery set restores capacity and readiness so your UT4K can continue safeguarding critical equipment and processes.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours) per battery
  • Quantity: 4 batteries in set
  • 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
  • Terminal: Nut & Bolt
  • Compatibility: Best Technologies Unity UT4K UPS unit

Benefits

These SigmasTek SP12-35 NB batteries deliver the durability and dependable performance expected from a long-lasting battery solution for Best Technologies Unity UT4K systems. The high-rate discharge design provides the capacity to handle brief, intense power demands, making this set an excellent high-performance UPS battery option for critical loads. Valve-regulated, spill-proof construction and low self-discharge offer maintenance-free operation and reliable standby power.

High vibration resistance enhances longevity in real-world installations, while U.L. recognition and CE certification confirm industry-standard safety compliance. Typical uses include Uninterruptible Power Supply (UPS) units, emergency power supply setups, and battery-powered tools where a replacement UPS battery must perform reliably under stress.

Each battery set is factory fresh and tested by our experienced staff to ensure compatibility with Best Technologies Unity UT4K specifications. Installation is simple when reusing your existing cables and hardware from the original configuration.

Replace your UT4K batteries with this proven, high-performance, long-lasting battery set today. Order now to secure dependable backup power and prompt shipping for in-stock items.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)98.8

Product Highlights

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

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