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SigmasTek  |  SKU: BW-3608

Best Power LI 660 UPS High Performance Replacement Battery Set 10.51 lb

13% off
New arrival
Sale price $53.99 USD Regular price $61.99
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Includes 2 factory fresh SigmasTek SP12-7.5HR batteries (12V 7.5AH)
High rate discharge design ideal for UPS and emergency power applications
Valve regulated, spill-proof construction for leak-free performance
High vibration resistance ensures stable operation in tough environments
Certified safety and performance 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.

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 | 7.5 Ah

Terminal Type

F2

Replacement Battery Set for Best Power LI 660 UPS

Tailored for the Best Power LI 660, this replacement UPS battery kit ensures compatibility, steady performance, and trusted reliability. The kit includes 2 SigmasTek SP12-7.5HR batteries (12 Volts 7.5 AH) formulated for high rate discharge performance — an excellent choice to restore runtime and protection to your Best Power LI 660 UPS. These brand new, factory fresh batteries arrive tested to meet or exceed OEM standards; installation uses your original cables and hardware for a seamless swap.

Key Specifications

  • Included: 2 x SigmasTek SP12-7.5HR batteries
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Battery Model: SP12-7.5HR
  • Terminal: F2
  • Brand: SigmasTek
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge; High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible With: Best Power LI 660 Uninterruptible Power Supply (UPS)

Benefits

These replacement batteries give the Best Power LI 660 renewed resilience and extended service life. The spill-proof, valve regulated construction minimizes maintenance and enhances safety, while the low self-discharge characteristic keeps the batteries ready for action after storage. Built to withstand vibration and certified to U.L. and CE standards, this pack provides dependable performance in demanding conditions.

As a high-performance UPS battery option, the SP12-7.5HR is ideal for high rate discharge situations where rapid power delivery is necessary for a short duration — typical of UPS switchover events or emergency backup scenarios. Recommended applications include Uninterruptible Power Supply (UPS) units, Emergency Power Supply setups, and battery powered tools requiring reliable backup power. Our experienced team tests each battery to ensure consistent quality and compatibility with the Best Power LI 660.

Fast order handling and frequent in-stock availability mean you can often receive your replacement batteries quickly and restore backup protection without extended delays. This is an economical way to maintain uptime and protect sensitive equipment.

Don’t wait until your Best Power LI 660 loses protection — purchase this long-lasting, high-performance UPS battery set now and regain dependable backup power today.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)10.5

Product Highlights

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

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