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SigmasTek  |  SKU: BW-4269

APC BACKUPS BK420SI UPS High Performance Replacement Battery 5.25 lb

8% off
New arrival
Sale price $33.99 USD Regular price $36.99
Shipping calculated at checkout.
Advanced AGM technology for enhanced battery efficiency
High rate discharge supports UPS emergency backup
Maintenance-free, spill-proof design for convenience
U.L. recognized and CE certified for quality assurance
Fits APC BACKUPS BK420SI, 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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🔹 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 APC BACKUPS BK420SI Battery — Compatible with APC BACKUPS BK420SI

Upgrade the backup capability of your APC BACKUPS BK420SI with this dependable replacement UPS battery. Designed to meet or exceed OEM SLA battery specifications, it combines AGM technology with a high-rate discharge profile to deliver consistent runtime and dependable protection. This long-lasting battery is ideal for maintaining uptime for critical devices during power interruptions.

Key Specifications

  • Compatible Model: APC BACKUPS BK420SI
  • Battery Type: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Terminal Type: F2
  • Design Feature: High Rate Discharge Design
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Applications: Emergency Power Supply, Battery Powered Tools
  • Brand: SigmasTek

Benefits

  • Rugged Durability: Sealed AGM cells and spill-proof design provide a dependable, low-maintenance replacement UPS battery suited for home and light commercial UPS units.
  • Reliable Long Life: High-rate discharge capability supports repeated power events and ensures dependable performance over the battery’s service life.
  • Superior Performance: Engineered to meet OEM specs, this battery supplies stable voltage for safe shutdown and protection of sensitive electronics connected to your APC BACKUPS BK420SI.
  • Maintenance-Free Operation: The sealed, factory-fresh unit requires no routine maintenance, simplifying replacement and reducing downtime.
  • Wide Application: Well-suited for UPS backup, emergency power setups, and battery-powered tools that rely on a consistent source of power.
  • Safety Certifications: U.L. recognition and CE certification provide reassurance for compliant installations.

Don’t risk downtime—replace your APC BACKUPS BK420SI battery today with this high-performance, long-lasting battery. Order now to restore reliable backup power and enjoy the protection of a 1 year warranty.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)5.25

Product Highlights

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

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