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SigmasTek  |  SKU: BW-2158

APC AP900 UPS High Performance Compatible Replacement Battery Set 16.33 lb

11% off
New arrival
Sale price $88.99 USD Regular price $99.99
Shipping calculated at checkout.
Set includes 4 fresh SigmasTek SP6-12HR batteries (6V 12AH)
Superior performance for UPS and emergency power
Valve regulated, spill-proof for leak protection
Low self-discharge for longer shelf life
Factory tested and 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

6 Volts | 12 Ah

Terminal Type

F2

SigmasTek SP6-12HR Replacement Battery Set for APC AP900

Bring dependable backup power back to your APC AP900 with this SigmasTek replacement UPS battery set. Built for reliability and tested against OEM expectations, this factory-fresh kit is an excellent option for users seeking a high-performance UPS battery that balances safety, durability, and affordability. Perfect for both home and professional environments, these batteries help keep essential equipment running during outages.

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 AP900

Benefits

This replacement UPS battery set is tailored to provide durable, long-term performance for the APC AP900. The high rate discharge design is ideal when higher power output is needed over short intervals, such as during generator transitions or sudden load events. Valve regulated, spill-proof construction reduces maintenance and improves safety in enclosed UPS cabinets.

Low self-discharge helps preserve energy during storage or infrequent use, making this set a dependable long-lasting battery option for seasonal or backup systems. High vibration resistance further increases reliability in environments where movement or equipment vibration is a factor. U.L. recognition and CE certification confirm adherence to recognized safety and performance standards.

Whether protecting critical servers, networking gear, or providing emergency power for essential appliances, this high-performance UPS battery set provides consistent, tested power. Our technical staff verifies that each battery meets performance expectations, and the simple requirement to reuse your original cables and hardware makes installation efficient and cost-effective.

Ready to upgrade your APC AP900? Order this replacement UPS battery kit now to ensure continuous protection, backed by fast shipping and a 1 year warranty.

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 AP900
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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