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SigmasTek  |  SKU: BW-4813

Best Technologies LI 5.0KVA UPS High Performance Replacement Battery Set 74.17 lb

19% off
New arrival
Sale price $347.99 USD Regular price $430.99
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Set of 3 new 12V 35 AH SigmasTek SP12-35 NB batteries for Best Technologies LI 5.0KVA UPS
High rate discharge design delivers dependable power for UPS applications
Valve regulated, spill-proof construction prevents leaks and spills
Low self-discharge maintains battery charge longer
U.L. recognized, CE certified, 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.

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 Replacement Battery Set for Best Technologies LI 5.0KVA UPS

Restore dependable backup power to your Best Technologies LI 5.0KVA Uninterruptible Power Supply with this compatible replacement UPS battery set. Designed for reliable, high-rate performance, the three-battery kit ensures your LI 5.0KVA returns to full backup capacity so critical loads remain protected during outages. These batteries combine safe construction with tested performance to give your UPS renewed operational life.

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 5.0KVA

Benefits

These replacement batteries are built for long-term reliability and strong short-term power delivery. The high rate discharge design supports applications that require higher power output over brief periods, making this a high-performance UPS battery solution for the Best Technologies LI 5.0KVA. Valve regulated, spill-proof construction ensures safe, maintenance-free operation within confined UPS assemblies, while low self-discharge allows batteries to retain charge well in storage.

High vibration resistance improves longevity and performance in environments where mechanical stress is present. U.L. recognition and CE certification provide assurance of safety and manufacturing quality. Each battery set is brand new, factory fresh, and tested by experienced staff to meet or exceed original manufacturer specifications—resulting in a reliable, long-lasting battery replacement that restores confidence in your UPS backup system.

Typical uses include Uninterruptible Power Supply (UPS) units, emergency power systems, and battery-powered tools that require reliable bursts of power. If you need a replacement UPS battery that balances durability, performance, and safety for your Best Technologies LI 5.0KVA, this SigmasTek SP12-35 NB kit is a practical and cost-effective option.

Don’t wait until an outage reveals degraded backup capacity—order this long-lasting, high-performance battery set for your Best Technologies LI 5.0KVA today and enjoy fast shipping plus 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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