Which labeling information is required for batteries used as a secondary power supply?

Which labeling information is required for batteries used as a secondary power supply?

• A. Serial Number
• B. Voltage Rating
• C. Month and Year of Installation
• D. Model Number

Answer: (C)

Tracking the age of a backup battery is essential for reliable operation. For batteries used as a secondary power supply in residential burglar and fire alarm systems, the label should include the month and year of installation so technicians can determine the battery's age and schedule timely replacements. Batteries degrade with time and usage, and most systems require replacement after a defined service life; knowing the installation date makes it possible to calculate when that life ends and to prevent a failed backup during an outage. While other labeling like voltage rating, model, or serial number helps identify the part, they don't provide the age information needed for maintenance planning. The installation month and year is the practical indicator used to manage battery lifecycle and compliance.

Tracking the age of a backup battery is essential for reliable operation. For batteries used as a secondary power supply in residential burglar and fire alarm systems, the label should include the month and year of installation so technicians can determine the battery's age and schedule timely replacements. Batteries degrade with time and usage, and most systems require replacement after a defined service life; knowing the installation date makes it possible to calculate when that life ends and to prevent a failed backup during an outage. While other labeling like voltage rating, model, or serial number helps identify the part, they don't provide the age information needed for maintenance planning. The installation month and year is the practical indicator used to manage battery lifecycle and compliance.