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SigmasTek  |  SKU: BW-4814

Best Technologies LI 3.0KVA UPS High Performance Replacement Battery Set 74.17 lb

23% off
New arrival
Sale price $347.99 USD Regular price $451.99
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Replacement with 3 SigmasTek SP12-35 NB batteries (12V, 35 AH) for Best Technologies LI 3.0KVA UPS
High rate discharge design provides quick power bursts when needed
Valve regulated, spill-proof for safe and clean operation
Low self-discharge ensures extended readiness and longer life
U.L. recognized, CE certified, includes 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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🔹 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 Replacement Battery Set for Best Technologies LI 3.0KVA UPS

Return your Best Technologies LI 3.0KVA Uninterruptible Power Supply to reliable service with this compatible replacement UPS battery set. Built for dependable performance and tested to meet OEM expectations, this three-battery kit is ideal for restoring backup runtime and protecting sensitive equipment during power interruptions. Expect consistent output and safe operation when you install these fresh, factory-fresh units.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Quantity: 3 batteries per set
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge
  • Features: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS Model: Best Technologies LI 3.0KVA

Benefits

This replacement UPS battery set delivers the durability and consistent output required for mission-critical applications. The high rate discharge design enables higher power output when short-duration demand spikes occur, making these batteries a strong choice for a high-performance UPS battery in the LI 3.0KVA. Valve regulated, spill-proof construction ensures safe installation and minimal maintenance throughout the service life.

Low self-discharge helps maintain stored energy when batteries are not in active service, contributing to longer useful life and making the set a true long-lasting battery option. High vibration resistance further enhances reliability in challenging environments. With U.L. recognition and CE certification, you gain the confidence of industry-standard safety and performance. Technically tested and brand new from the factory, these batteries meet or exceed OEM standards for restoring your UPS’s backup capability.

Ideal applications include Uninterruptible Power Supply (UPS) systems, emergency power backup, and battery-powered tools that need reliable transient power. Choose this SigmasTek SP12-35 NB replacement UPS battery set to maintain uninterrupted protection for your Best Technologies LI 3.0KVA.

Ready to replace your LI 3.0KVA batteries? Order this dependable, long-lasting battery set today to secure rapid delivery and a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)74.1

Product Highlights

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

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