APC Back-UPS XS 900VA BX900R UPS High Performance Replacement Battery Set 10.51 lb

Replacement Battery Set for APC Back-UPS XS BX900R — SigmasTek SP12-7.5HR (2-Pack)

Restore reliable backup power to your APC Back-UPS XS BX900R with a premium replacement UPS battery set built for performance and longevity. This two-pack of SigmasTek SP12-7.5HR batteries provides the voltage, capacity, and rugged design needed to keep your UPS functioning during brownouts and blackouts. Designed for compatibility with the BX900R, these batteries combine a high-rate discharge profile and low self-discharge to ensure readiness when emergency power is needed most.

Key Specifications

• Included batteries: 2 x SigmasTek SP12-7.5HR
• Voltage: 12 Volts
• Capacity: 7.5 AH (amp-hours)
• Terminal type: F2
• Compatible UPS model: APC Back-UPS XS BX900R
• Design: High Rate Discharge Design
• Construction: Valve Regulated Spill Proof (sealed lead-acid)
• Features: Low self-discharge, High vibration resistance
• Certifications: U.L. Recognized and CE Certified
• Condition: Brand New, Factory Fresh
• Warranty: 1 Year Warranty
• Installation note: Use all existing cables and hardware from original configuration to connect new batteries
• Shipping note (in-stock): Orders typically shipped within 24 hours

Benefits

These replacement batteries deliver the durability and steady performance required for mission-critical backup applications. As a high-performance UPS battery option, the SigmasTek SP12-7.5HR pair supports high rate discharge scenarios—perfect when the BX900R must deliver extra power for brief periods. The sealed, valve-regulated design offers spill-proof safety and minimal maintenance, while low self-discharge ensures the batteries remain ready after storage intervals, contributing to a long-lasting battery lifecycle.

High vibration resistance makes this battery set suitable for a variety of settings, from office UPS racks to mobile or industrial locations where vibration can be a factor. The U.L. and CE certifications validate compliance with safety standards, giving you additional assurance. Typical uses include Uninterruptible Power Supply units, emergency power systems, and battery-powered tools that demand reliable energy delivery when mains power fails.

With factory-fresh condition and tested performance to meet or exceed OEM standards, these batteries are an excellent solution for restoring the runtime and reliability of your APC Back-UPS XS BX900R. They help prevent downtime, protect equipment, and maintain productivity during outages.

Don’t wait until your backup fails—order this replacement UPS battery pack for the APC Back-UPS XS BX900R now and take advantage of fast shipping and a 1 year warranty. Click to purchase and ensure your UPS is prepared for the next power interruption.