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SigmasTek  |  SKU: BW-4775

Best Technologies FERRUPS FE 3.1KVA UPS Compatible Replacement Battery Set 98.89 lb

12% off
New arrival
Sale price $459.99 USD Regular price $523.99
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Includes 4 SigmasTek SP12-35 NB batteries (12V 35AH)
High vibration resistance for reliable UPS performance
Valve regulated spill proof for safe handling
Tested to meet or exceed OEM specifications
1 year warranty for customer confidence
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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.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

SigmasTek SP12-35 NB (12V 35AH) Replacement Battery Set for Best Technologies FERRUPS FE 3.1KVA

Ensure uninterrupted operation for your Best Technologies FERRUPS FE 3.1KVA with this premium replacement UPS battery set. This 4-pack of SigmasTek SP12-35 NB batteries is built for dependable, high-rate discharge output and consistent long-term performance. If you require a high-performance UPS battery that restores capacity and reliability, this replacement pack offers a professional-grade solution for critical backup needs.

Key Specifications

  • Battery Model: SigmasTek SP12-35 NB
  • Quantity: 4 batteries included
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof (VRLA)
  • 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
  • Compatibility Note: Use existing cables and hardware from original configuration to connect new batteries
  • OEM Fit: Replacement for Best Technologies FERRUPS FE 3.1KVA UPS units

Benefits

  • Durability: Valve-regulated, spill-proof design and high vibration resistance ensure these batteries remain reliable under repeated use and in transport-prone applications.
  • Long Life: Low self-discharge helps preserve capacity during storage, delivering a long-lasting battery solution that minimizes downtime for maintenance and replacement.
  • High Performance: The high rate discharge design provides the short-duration, high-current capability necessary for UPS systems facing transient high loads, qualifying this pack as a high-performance UPS battery.
  • Certifications & Safety: U.L. recognition and CE certification provide assurance that these replacement batteries comply with industry safety and quality standards.
  • Broad Applications: Ideal for Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools that require reliable, immediate power delivery.
  • Factory Tested: Every battery is brand new and tested to meet or exceed OEM specifications for the Best Technologies FERRUPS FE 3.1KVA.

Replace your worn-out cells with confidence — order this replacement UPS battery set for your Best Technologies FERRUPS FE 3.1KVA today and restore dependable, long-lasting battery backup. Fast shipping for in-stock items means you can get your high-performance UPS battery pack installed quickly.

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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