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SigmasTek  |  SKU: BW-2275

APC AP520 UPS High Performance Replacement Battery Set 8.17 lb

10% off
New arrival
Sale price $46.99 USD Regular price $51.99
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Includes 2 SigmasTek SP6-12HR batteries (6V 12AH) for APC AP520 UPS
High rate discharge capability for efficient short burst power delivery
Spill-proof valve regulated design prevents leaks and reduces maintenance
Low self-discharge ensures batteries stay charged longer
Factory fresh, U.L. Recognized, CE Certified, backed by 1-year warranty
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🔹 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.

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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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Volts & Amps

6 Volts | 12 Ah

Terminal Type

F2

SigmasTek SP6-12HR Replacement Battery Set for APC AP520 UPS

Maintain uninterrupted protection for your APC AP520 with this compatible set of replacement UPS batteries. The kit contains two SigmasTek SP6-12HR batteries (6 Volts, 12 AH) designed for high rate discharge performance, delivering dependable, short-term power when your UPS needs to support critical loads. As a high-performance UPS battery replacement, this option provides reliable operation, safety certifications, and factory-fresh quality to keep your equipment safe during power events.

Key Specifications

  • Compatible UPS Model: APC AP520
  • Included: 2 x SigmasTek SP6-12HR batteries
  • Voltage: 6 Volts
  • Capacity: 12 AH (Ampere-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Use all existing cables and hardware from original configuration to connect new batteries
  • Brand: SigmasTek

Benefits

These SigmasTek batteries are engineered to be a long-lasting battery solution for UPS and emergency power applications. The high rate discharge design enables short bursts of high power output, which is especially useful for UPS units supporting fluctuating loads or equipment with high inrush currents. Valve-regulated, spill-proof construction and low self-discharge characteristics provide safety and readiness over time, while high vibration resistance helps maintain integrity in installations subject to movement or mechanical stress.

Use this replacement set in Uninterruptible Power Supply systems like the APC AP520, emergency power supplies, or for battery-powered tools requiring dependable short-term energy. The UL recognition and CE certification offer additional assurance of safety and compliance. Each battery is brand new and factory-tested to meet or exceed OEM performance expectations.

Remember that installation requires the reuse of existing cables and hardware from your original battery configuration. We typically ship in-stock orders within 24 hours, and our customer service team is available to answer any questions about fitment or installation.

Ready to secure reliable backup power? Buy this replacement UPS battery set for your APC AP520 today — a high-performance, long-lasting battery option backed by a 1 year warranty and quick shipping. Call for assistance or place your order now.

Technical Specifications

Voltage6 Volts
Amp Hours12 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.0
Height (in.)3.7
Weight (lb.)8.16

Product Highlights

  • Brand Replacement : APC AP520
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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