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SigmasTek  |  SKU: BW-4861

Best Power LI 1.7KVA UPS High Performance Replacement Battery Set 49.45 lb

26% off
New arrival
Sale price $245.99 USD Regular price $332.99
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Includes 2 brand new SigmasTek SP12-35 NB batteries (12V 35AH)
High rate discharge design for superior short-term power output
Valve regulated, spill-proof construction for safe operation
Low self-discharge and high vibration resistance for long-lasting reliability
U.L. recognized, CE certified, and backed by a 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 — Compatible with Best Power LI 1.7KVA UPS

Upgrade your Best Power LI 1.7KVA with this brand new replacement UPS battery set engineered for compatibility, dependable performance, and reliable run-time. This kit includes 2 SigmasTek SP12-35 NB batteries (12 Volts, 35 AH) designed to deliver the high discharge power your UPS may demand during outages. Whether you need a replacement UPS battery for routine maintenance or to restore emergency backup capability, these factory-fresh batteries provide a trusted, long-lasting battery solution for the Best Power LI 1.7KVA.

Key Specifications

  • Battery Model: SigmasTek SP12-35 NB
  • Quantity Included: 2 batteries
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • 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
  • Compatible UPS Model: Best Power LI 1.7KVA
  • Applications: Uninterruptible Power Supply (UPS), Emergency Power Supply, Battery Powered Tools
  • Installation Note: Use all existing cables and hardware from original configuration to connect new batteries
  • Brand: SigmasTek
  • Performance: Superior Performance for high rate discharge UPS applications

Benefits

These SigmasTek batteries are built for durability and dependable service life, making them an ideal long-lasting battery option for mission-critical backup systems. The high rate discharge design gives you a high-performance UPS battery capable of delivering short bursts of higher power when your Best Power LI 1.7KVA demands it. Valve regulated, spill-proof construction reduces maintenance and enhances safety in enclosed UPS cabinets. Low self-discharge preserves stored energy during idle periods, while high vibration resistance improves reliability in environments where movement or vibration is a concern.

Typical applications include Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools. Technically tested to meet or exceed OEM specifications, this replacement UPS battery set offers consistent recharge acceptance and predictable runtime behavior. The U.L. recognition and CE certification provide added assurance of quality and compliance.

Ready to restore reliable backup power for your Best Power LI 1.7KVA? Order this high-performance UPS battery set today and get a dependable, long-lasting battery solution backed by a 1 year warranty. Purchase now to secure superior performance and fast shipping.

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

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