A sealed lead battery is typically used for which type of power supply in most wired alarm systems?

A sealed lead battery is typically used for which type of power supply in most wired alarm systems?

• A. Primary
• B. Secondary
• C. Tertiary
• D. Backup

Answer: (B)

A sealed lead battery is typically utilized as a secondary power supply in most wired alarm systems. These batteries play a crucial role in providing power during times when the primary power source, usually the electrical grid, is unavailable or interrupted. In alarm systems, reliability and continuity of power are essential for ensuring that the system functions correctly at all times, especially during power outages.

This type of battery is advantageous for such applications because it can reliably provide the necessary voltage and current while being maintenance-free. The secondary power system ensures that the alarm can continue to operate independently, alerting users and authorities in case of emergencies, even when other power sources fail. This capability is particularly important in security systems where uptime is critical to protect property and ensure safety.