1. What is the FireLite ES200X Battery Calculation?

The FireLite ES200X battery calculation determines the required battery capacity (Ah2) needed to support the fire alarm system during both standby and alarm conditions, with an appropriate safety factor.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Standby Current \) — Current drawn during standby (amps)
• \( Time2 \) — Required backup time (hours)
• \( Alarm Current \) — Current drawn during alarm (amps)
• \( Safety \) — Safety factor (decimal)

Explanation: The equation calculates the total amp-hours needed for both standby and alarm modes, then applies a safety factor to ensure sufficient capacity.

3. Importance of Battery Calculation

Details: Proper battery sizing is crucial for fire alarm systems to ensure they remain operational during power outages and can support alarm conditions for the required duration.

4. Using the Calculator

Tips: Enter standby current in amps, alarm current in amps, required backup time in hours, and safety factor (typically 1.2-1.5). All values must be non-negative.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical safety factor for fire alarm batteries?
A: Safety factors typically range from 1.2 to 1.5 to account for battery aging and temperature variations.

Q2: How do I determine standby and alarm currents?
A: These values should be obtained from the system specifications or measured during commissioning.

Q3: What is Time2 in this calculation?
A: Time2 represents the required backup time in hours, typically specified by local fire codes (often 24 hours standby + 5 minutes alarm).

Q4: Does this calculation account for battery aging?
A: The safety factor helps account for battery aging, but batteries should be tested regularly and replaced as needed.

Q5: Can this be used for other fire alarm panels?
A: While similar principles apply, always consult the specific manufacturer's guidelines for your panel model.