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SigmasTek  |  SKU: BW-2160

APC BACKUPS BK900 UPS High Performance Compatible Replacement Battery Set 16.33 lb

23% off
New arrival
Sale price $88.99 USD Regular price $115.99
Shipping calculated at checkout.
Replacement pack with 4 new SigmasTek SP6-12HR batteries (6V 12AH)
Designed for UPS and emergency power use
Valve regulated, spill-proof prevents leaks
High vibration resistance for reliability
Factory fresh with 1-year warranty included
In stock

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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

6 Volts | 12 Ah

Terminal Type

F2

SigmasTek SP6-12HR Replacement Battery Set for APC BACKUPS BK900

Restore confidence in your APC BACKUPS BK900 with this dependable SigmasTek replacement UPS battery set. Engineered for consistent performance and tested for quality, this factory-new kit returns reliable runtime to your UPS system so you can protect vital electronics and systems during outages. This high-performance UPS battery option is an excellent, cost-effective choice for both residential and light commercial applications.

Key Specifications

  • Includes: 4 SigmasTek SP6-12HR batteries
  • Voltage: 6 Volts
  • Capacity: 12 AH
  • High Rate Discharge Design
  • Valve Regulated Spill Proof Construction
  • Low Self-discharge
  • High Vibration Resistance
  • U.L. Recognized and CE Certified
  • Superior Performance
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Use all existing cables and hardware from original configuration to connect new UPS batteries
  • Compatible With: APC BACKUPS BK900

Benefits

This replacement UPS battery set provides a durable and long-lasting battery solution specifically suited for the APC BACKUPS BK900. The high rate discharge profile supplies needed bursts of power for brief, intense loads—perfect for UPS systems managing sudden demand changes. Built with valve regulated, spill-proof technology, these batteries reduce the risk of leaks and simplify maintenance, making them suitable for enclosed or rack-mounted UPS systems.

Low self-discharge preserves battery health during periods of storage, ensuring the pack is ready when called upon. High vibration resistance increases reliability in less-than-ideal conditions, and U.L./CE certifications demonstrate compliance with recognized safety and performance standards. Together, these attributes make this kit a trusted, long-lasting battery option for emergency power, uninterruptible power supply duties, and battery-powered tools.

Tested by experienced technicians to meet or exceed OEM performance, this SigmasTek set is an effective replacement for worn-out UPS batteries. The requirement to reuse your original cables and hardware allows for a straightforward swap, minimizing installation time and service disruption.

Don’t risk downtime—order this replacement UPS battery pack for your APC BACKUPS BK900 now and secure reliable backup power with fast shipping and a 1 year warranty. Purchase today to protect your equipment and maintain continuity.

Technical Specifications

Voltage6 Volts
Amp Hours12 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.0
Height (in.)3.7
Weight (lb.)16.32

Product Highlights

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

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