The APC Replacement Battery Cartridge #18 (RBC18) is a sealed lead–acid (VRLA) battery cartridge designed specifically for use with compatible APC UPS models such as PS250I, PS450I, SC250RMI1U, and SC450RMI1U. This fully assembled battery cartridge ensures reliable power backup by restoring UPS runtime and supports hot-swap replacement, allowing uninterrupted operation during battery change.

Key features include:

• Nominal 12 V output voltage with a capacity of 9 Ah (9000 mAh) for dependable power support


• Sealed lead-acid VRLA technology offering maintenance-free operation


• Hot-swappable design to maintain UPS functionality during replacement


• Supplied with all necessary connectors, installation guide, and battery recycling instructions


• Durable construction with an expected service life of 3 to 5 years under normal conditions


• Supports operating ambient temperature range from 0°C to 40°C and storage temperatures from -15°C to 45°C


• Compact dimensions (~302 mm W x 102 mm D x 36 mm H) and weight approx. 2.6 kg


• Comes with a limited 2-year warranty covering repair or replacement