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SigmasTek  |  SKU: BW-5285

APC BACKUPS BK1250 UPS High Capacity Replacement Battery Set 25.32 lb

24% off
New arrival
Sale price $113.99 USD Regular price $149.99
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Includes 2 brand new SigmasTek SP12-18HR batteries (12V 18AH)
High rate discharge for optimal UPS performance
Valve regulated, spill-proof for safe operation
Low self-discharge and vibration resistant for long life
UL recognized and CE certified with 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 | 18 Ah

Terminal Type

Nut & Bolt

Replacement Battery Set for APC BACKUPS BK1250

Restore dependable backup power for your APC BACKUPS BK1250 with this compatible replacement UPS battery set. The package includes two SigmasTek SP12-18HR batteries engineered for reliable performance, safe operation, and long service life. Ideal for protecting home or small office equipment, these batteries provide a practical, high-performance UPS battery upgrade that’s factory fresh and quality tested.

Key Specifications

  • Included: 2 SigmasTek SP12-18HR batteries
  • Voltage: 12 Volts
  • Capacity: 18 AH (Amp-hours)
  • Terminal: Nut & Bolt
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof
  • Features: Low Self-discharge
  • Features: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility: APC BACKUPS BK1250 UPS unit
  • Note: Use all existing cables and hardware from original configuration to connect the new batteries

Benefits

This replacement set is designed to deliver a long-lasting battery solution tailored to the BK1250’s power needs. The high rate discharge design ensures your UPS can supply the necessary current for brief periods of heavy demand, such as during utility disturbances or equipment startup. Low self-discharge and valve regulated, spill-proof construction help maintain safety and reduce maintenance, while high vibration resistance contributes to longer service life in less stable environments.

Common applications include uninterruptible power supply units like the APC BACKUPS BK1250, emergency power backup systems, and battery-powered tools that benefit from a reliable energy source. Each battery is brand new and factory tested to meet or exceed OEM specifications, and the U.L. and CE certifications reinforce product safety and quality. With a 1 year warranty and thorough testing by our technical team, you can trust these replacement UPS batteries to restore runtime and protect critical devices.

Replacing tired batteries proactively helps avoid unexpected downtime and keeps your sensitive equipment safe during outages. Our staff is available to assist with questions about compatibility and installation; remember to use your existing cables and hardware for connection.

Bring back trusted backup power for your APC BACKUPS BK1250—order this high-performance, long-lasting replacement UPS battery set now and take advantage of fast shipping and expert support.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)25.3

Product Highlights

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

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