Allen-Bradley A911-2817 Battery Backup Module

Allen-Bradley A911-2817 Battery Backup Module (Model X01-C) is a battery unit that provides memory backup and emergency power for industrial control equipment. It is commonly installed in PLCs, CNC machines, and industrial controllers to preserve volatile memory, real-time clock data, and machine parameters during power loss. The unit uses an internal equipment mount with an OEM connector assembly and employs a proprietary or application-specific battery chemistry, with output voltage not publicly specified and rechargeability described as application dependent. Designed for continuous standby operation in industrial indoor environments, it is typically used for repair, retrofit, or replacement within industrial automation systems.