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SigmasTek  |  SKU: BW-4857

Best Technologies FERRUPS FES 1.15KVA UPS High Performance Replacement Battery Set 49.45 lb

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New arrival
Sale price $245.99 USD Regular price $329.99
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Replacement battery set with 2 SigmasTek SP12-35 NB (12V, 35AH)
High rate discharge for Best Technologies FERRUPS FES 1.15KVA UPS units
Valve regulated, spill-proof construction for reliable, safe use
Low self-discharge and vibration resistance for longer service life
Certified quality with U.L., CE, and backed by 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 | 35 AH

Terminal Type

Nut & Bolt

Replacement SigmasTek SP12-35 NB Batteries for Best Technologies FERRUPS FES 1.15KVA UPS

Restore reliable backup power for your Best Technologies FERRUPS FES 1.15KVA Uninterruptible Power Supply with this compatible replacement UPS battery set. This pair of SigmasTek SP12-35 NB batteries delivers dependable performance for short, high-current demands and provides the reassurance of tested, factory-fresh cells. Ideal for network closets, small server racks, and critical home or office equipment, this replacement UPS battery combination emphasizes performance, safety, and consistent operation.

Key Specifications

  • Quantity: 2 batteries per set
  • Battery Model: SigmasTek SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction (sealed)
  • Features: Low Self-discharge, High Vibration Resistance, Superior Performance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Compatible With: Best Technologies FERRUPS FES 1.15KVA UPS

Benefits

These batteries provide a proven, high-performance UPS battery option for users who rely on their Best Technologies FERRUPS FES 1.15KVA UPS for uninterrupted operations. The high rate discharge design ensures that brief periods of elevated current draw are handled smoothly, keeping connected equipment running through power events. Valve regulated, spill-proof construction reduces maintenance and increases safety, while low self-discharge keeps the battery ready after periods of storage or infrequent use. High vibration resistance and rugged construction further increase durability and reduce the chance of premature failure in challenging environments.

As a long-lasting battery solution, this replacement set is ideal for UPS units, emergency power systems, and battery-powered tools. Use these batteries for servers, telecom equipment, surveillance systems, point-of-sale hardware, and portable power tools that require reliable backup or replacement power. The nut & bolt terminals allow you to reuse the original cables and hardware from your FERRUPS FES 1.15KVA UPS for a secure installation.

We test every replacement battery set to ensure it meets or exceeds OEM expectations, delivering peace of mind and consistent run-time performance. This makes them a dependable choice when replacing worn or failed cells in your UPS system.

Don’t wait until the next outage—order this SigmasTek SP12-35 NB replacement UPS battery set for your Best Technologies FERRUPS FES 1.15KVA today. For help selecting or installing batteries, call our customer service at . Purchase now and enjoy fast shipping on 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.)49.4

Product Highlights

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

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