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SigmasTek  |  SKU: BW-4279

APC BACKUPS BK400 UPS High Performance Compatible Replacement Battery 5.25 lb

24% off
New arrival
Sale price $33.99 USD Regular price $44.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for leak-proof performance
High rate discharge design ensures reliable power delivery
Maintenance-free with spill-proof construction for safety
U.L. recognized and CE certified for quality assurance
Compatible replacement with 1-year warranty for peace of mind
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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 BK400 Battery — Compatible with APC BACKUPS BK400

When your APC BACKUPS BK400 needs a fresh battery, this replacement unit is engineered to provide OEM-comparable performance and reliability. Designed to meet or exceed SLA battery specifications, this replacement UPS battery delivers the dependable power required to protect critical electronics and maintain uptime during outages. It is an economical and effective way to restore your UPS system to full capability.

Key Specifications

  • Absorbent Glass Mat (AGM) Technology
  • High Rate Discharge Design
  • Maintenance-Free Design with Spill Proof Construction
  • U.L. Recognized and CE Certified
  • Brand New, Factory Fresh
  • 1 Year Warranty
  • SigmasTek
  • 12 Volts
  • 7.5 Ah
  • F2 terminal
  • Compatible with APC BACKUPS
  • SLA replacement battery for APC BK400

Benefits

This high-performance UPS battery is constructed to deliver dependable, steady power during outages, using AGM technology for leak-resistant, maintenance-free service. The high rate discharge capability supports transient loads and keeps sensitive devices operating until power is restored. As a replacement UPS battery, it ensures your APC BACKUPS BK400 operates to its designed runtime specifications.

Certified by U.L. and CE standards and shipped brand new and factory fresh, the battery combines safety and quality for both residential and commercial applications. The included 1 Year Warranty adds assurance, while the maintenance-free design eliminates regular water checks or complicated upkeep. This makes it ideal for UPS backup, emergency power systems, and battery-powered tools where consistent short-term discharge is needed.

Whether replacing an old battery or stocking spares for preventative maintenance, this SigmasTek 12V 7.5Ah F2 terminal battery provides reliable performance, durability, and the long-lasting battery characteristics crucial for uninterrupted protection.

Ensure uninterrupted protection for your APC BACKUPS BK400 — purchase this replacement UPS battery today and experience the benefits of a high-performance UPS battery that’s ready when you need it. Add to cart to maintain critical uptime.

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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