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SigmasTek  |  SKU: BW-3602

Best Technologies LI 520 UPS High Performance Replacement Battery Set 10.51 lb

17% off
New arrival
Sale price $53.99 USD Regular price $64.99
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Replacement set for Best Technologies UPS units with 2 SigmasTek batteries
High vibration resistance protects against shocks and impacts
Superior long-life performance for extended UPS run time
Requires original cables and hardware for installation compatibility
CE certified and UL recognized for safety and compliance
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

Replacement SigmasTek SP12-7.5HR Battery Set for Best Technologies LI 520 UPS

Ensure continuous protection for your Best Technologies LI 520 Uninterruptible Power Supply with this brand new replacement UPS battery set. Tailored for compatibility, these SigmasTek batteries provide reliable runtime, robust performance, and the peace of mind that comes from a long-lasting battery solution. Remember to reuse all existing cables and hardware from your original UPS configuration to correctly install the new batteries.

Key Specifications

  • Battery Model: SigmasTek SP12-7.5HR (set of 2)
  • Voltage: 12 Volts
  • Capacity: 7.5 AH
  • Terminal Type: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction (VRLA)
  • Features: Low Self-discharge
  • Durability: 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 520

Benefits

These replacement batteries are built to withstand the demands of modern UPS systems. The high rate discharge design gives the Best Technologies LI 520 the extra surge capability it may need during transfer events, ensuring connected equipment remains protected. Valve regulated spill proof construction lowers maintenance needs and keeps installations tidy and safe. Low self-discharge helps the batteries retain capacity while in storage or standby, and high vibration resistance improves reliability in a variety of operating environments.

As a high-performance UPS battery option, this SigmasTek set delivers dependable power for uninterruptible power supply units, emergency power systems, and battery-powered tools. Typical applications include small business server backups, network closets, medical backup devices, and critical office equipment that depend on the Best Technologies LI 520 for uptime. U.L. recognition and CE certification further assure you of compliance with recognized safety and quality benchmarks.

Our expert team tests each replacement UPS battery to help ensure it meets or exceeds OEM performance. If the existing batteries in your Best Technologies LI 520 are showing age or failing capacity, this set provides an effective, long-lasting battery replacement to restore reliable backup power.

Don’t wait—purchase this replacement UPS battery set for the Best Technologies LI 520 now to secure dependable backup power and fast shipping.

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

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