1. What is the DMP Battery Calculator?

The DMP Battery Calculator estimates the required battery capacity (in ampere-hours) for DMP (Digital Monitoring Products) security systems based on standby current, alarm current, and a safety margin.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• DMP Standby A — Standby current draw in amps
• Alarm A — Alarm current draw in amps
• 0.083 — Represents 5 minutes (0.083 hours) of alarm time
• Margin — Safety factor (typically 1.2 for 20% extra capacity)

Explanation: The equation calculates the total energy needed for 24 hours of standby operation plus 5 minutes of alarm time, with an additional safety margin.

3. Importance of Battery Capacity Calculation

Details: Proper battery sizing ensures your security system remains operational during power outages for the required duration.

4. Using the Calculator

Tips: Enter the standby current (typically found in device specifications), alarm current, and desired safety margin (1.2 for 20% extra capacity is common).

5. Frequently Asked Questions (FAQ)

Q1: What is a typical standby current for DMP systems?
A: Standby current varies by model but is typically between 0.1A to 0.5A for most DMP panels.

Q2: How long should my battery last?
A: The calculated capacity should provide 24 hours of standby plus 5 minutes of alarm time.

Q3: What margin should I use?
A: 1.2 (20% extra) is common, but you may increase this for critical systems or harsh environments.

Q4: Does this account for battery aging?
A: No, the margin helps but batteries lose capacity over time and should be tested/replaced periodically.

Q5: Can I use this for non-DMP systems?
A: The calculation method is generic, but always consult manufacturer specifications for your specific equipment.