Apc - Schneider RBC23, Replacable Battery, Intelligent Battery Management System, Convenient, Easy, and Green, Includes All required connectors, Battery recycling guide, Installation guide, Metallic battery tray or enclosure, Reusable packaging, Capacity 336 VAh, Lead-Acid. The RBC23 Replacement Battery Cartridge #23 from APC is tested and certified for compatibility to restore UPS performance to the original specifications. It is designed by APC by Schneider.