1. What is the Intruder Alarm Battery Calculation?

The Intruder Alarm Battery Calculation determines the required battery capacity (in amp-hours) to power an intruder alarm system for a specified duration during a power outage when using a UPS (Uninterruptible Power Supply).

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Ah \) — Battery capacity in amp-hours
• \( W \) — Intruder system power consumption in watts
• \( h \) — Required backup time in hours
• \( V \) — System voltage in volts

Explanation: The equation calculates the battery capacity needed to sustain the alarm system for the desired duration during a power outage.

3. Importance of Proper Battery Sizing

Details: Correct battery sizing ensures your intruder alarm system remains operational during power outages, providing continuous security coverage.

4. Using the Calculator

Tips: Enter the intruder system power in watts, required UPS backup time in hours, and system voltage in volts. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's typical power consumption for intruder alarms?
A: Most systems consume between 10-50 watts, but check your specific system's specifications.

Q2: How long should battery backup last?
A: Typically 24-72 hours is recommended for security systems.

Q3: What voltage do most alarm systems use?
A: Common voltages are 12V or 24V DC for intruder alarm systems.

Q4: Should I add a safety margin?
A: Yes, consider adding 20-30% to the calculated capacity to account for battery aging and temperature effects.

Q5: Can I use this for other security systems?
A: Yes, the same calculation applies to fire alarms, access control systems, and other security devices.