APC RBC18 Replacement Battery — PS250I PS450I SC250RMI1U

The APC Replacement Battery Cartridge #18 (RBC18) is a genuine APC replacement battery designed to restore full runtime and protection to compatible APC UPS models including the PS250I, PS450I, SC250RMI1U, and SC450RMI1U. This 12V, 9Ah lead-acid battery is factory-tested and certified for 100% compatibility, ensuring reliable performance and seamless integration with your existing power protection infrastructure. With a typical service life of three to five years, this replacement cartridge extends the useful operational life of your UPS investment, providing continued protection for your critical networking equipment and systems.

• Plug-and-play installation: Arrives fully assembled with all required connectors and detailed installation guide for quick, hassle-free battery replacement
• Wide operating conditions: Functions reliably in temperatures from 0-40°C, humidity up to 95%, and altitudes up to 10,000 feet
• 2-year warranty: Backed by APC’s quality assurance for peace of mind and long-term value
• Environmental responsibility: Includes battery recycling guide and reusable packaging to support proper disposal

For businesses and professionals running UniFi networks and other critical infrastructure, maintaining UPS battery health is essential to ensuring uninterrupted operation during power events. This genuine APC replacement cartridge delivers the reliability and performance your power protection system was designed to provide, helping safeguard switches, gateways, controllers, and other essential networking equipment from damaging power fluctuations and outages. The stand-alone battery stack design simplifies maintenance without requiring specialized tools or extended downtime.