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SigmasTek  |  SKU: BW-4780

Best Power Unity UT4K UPS Compatible Replacement Battery Set 98.89 lb

25% off
New arrival
Sale price $459.99 USD Regular price $610.99
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Includes 4 high capacity 12V 35AH batteries
High rate discharge supports emergency power needs
Valve regulated spill proof for safe use
Low self-discharge minimizes maintenance
Certified with 1 year warranty and OEM compliance
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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

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

Bring reliable backup power back to your Best Power Unity UT4K with this compatible, high-performance replacement UPS battery set. This four-battery kit offers dependable output, low self-discharge, and robust construction to ensure your UPS delivers when it counts—protecting servers, network gear, and emergency systems.

Key Specifications

  • Battery model: SigmasTek SP12-35 NB
  • Quantity: 4 batteries per set
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge, High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS model: Best Power Unity UT4K

Benefits

This replacement UPS battery set combines durability and performance for long-term reliability. The high rate discharge design supports the elevated power demands of UPS events and short-duration heavy loads. Valve-regulated, spill-proof construction minimizes maintenance and improves safety in confined spaces. Low self-discharge helps maintain energy during storage, and high vibration resistance ensures consistent operation through transport and installation. U.L. recognition and CE certification provide additional assurance of quality and compliance.

As a long-lasting battery solution, this set is ideal for Uninterruptible Power Supply units, emergency backup systems, and battery-powered tools that require dependable bursts of power. Technicians and system administrators will value the factory-fresh condition, rigorous testing, and one-year warranty that comes with this kit. These batteries are tested to meet or exceed OEM specifications for the Best Power Unity UT4K, delivering reliable runtime when you need it most.

Installation is straightforward—use your existing cables and hardware from the original configuration to connect the new batteries. Purchase this replacement UPS battery set for the Best Power Unity UT4K today to secure a high-performance, long-lasting battery solution for your critical power needs.

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 Power
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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