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SigmasTek  |  SKU: BW-2157

APC SMART-UPS SU900 UPS High Performance Compatible Replacement Battery Set 16.33 lb

9% off
New arrival
Sale price $88.99 USD Regular price $97.99
Shipping calculated at checkout.
Includes 4 brand new SigmasTek SP6-12HR batteries (6V 12AH)
High rate discharge design for peak power needs
Valve regulated, spill-proof construction for safety
Low self-discharge extends battery readiness
U.L. 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.

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Volts & Amps

6 Volts | 12 Ah

Terminal Type

F2

SigmasTek SP6-12HR Replacement Battery Set for APC SMART-UPS SU900

Restore reliable backup power for your APC SMART-UPS SU900 with this premium replacement UPS battery set from SigmasTek. Engineered for dependable performance and safety, this factory-fresh kit ensures your UPS delivers the runtime required to protect critical equipment. Designed for high-demand environments, this high-performance UPS battery solution blends durability and efficiency to provide consistent emergency power when you need it most.

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 SMART-UPS SU900

Benefits

Choose a replacement UPS battery that emphasizes longevity and steady output. With a design optimized for high rate discharge, these batteries supply strong bursts of power to handle sudden loads — a typical scenario in UPS and emergency power applications. The valve regulated spill proof construction minimizes leakage risk, making this a safer, maintenance-friendly option compared to flooded lead-acid alternatives.

The low self-discharge characteristic means retained capacity during periods of storage, helping ensure the battery pack remains ready for service. High vibration resistance and U.L./CE certifications highlight the robust construction and global compliance of these cells. All of this contributes to a long-lasting battery investment that reduces downtime and maintenance cycles.

Ideal for protecting servers, network gear, medical equipment, or powering battery-driven tools in the field, this SigmasTek set is professionally tested to meet or exceed OEM standards. Installation is straightforward when using your existing cables and hardware, allowing quick replacement and minimal interruption to protected loads.

Don’t wait until a power event reveals depleted batteries. Purchase this replacement UPS battery for your APC SMART-UPS SU900 now and secure reliable backup power with 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 SMART-UPS
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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