Labeling Batteries: which information must be included on the label?

• A. Serial number
• B. Date installed
• C. Model number
• D. No labeling required

Answer: (B)

Labeling batteries is about providing essential information that keeps an alarm system reliable and compliant. The date installed is the information that must appear on the label because it immediately tells technicians how old the battery is and when it may need replacement. This helps plan maintenance, ensures replacements happen within required intervals, and supports warranty or service-contract compliance. While a serial number or model number can be helpful for inventory or compatibility checks, they don’t indicate the battery’s age or replacement needs. So the installation date is the critical detail required on the label to support ongoing performance and regulatory requirements.