1. What is Battery Inverter Run Time?

The battery inverter run time estimates how long your Rainbird irrigation system can operate on battery power before needing recharge. It depends on battery capacity (Ah), battery voltage (V), and the power consumption of your Rainbird inverter (W).

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Battery Ah} \) — Battery capacity in amp-hours
• \( \text{Battery Voltage} \) — Battery voltage in volts (typically 12V, 24V, or 48V)
• \( \text{Rainbird Inverter Power} \) — Power consumption of Rainbird inverter in watts

Explanation: The formula calculates the total energy available in the battery (in watt-hours) and divides it by the power consumption of the inverter to determine runtime.

3. Importance of Run Time Calculation

Details: Knowing your system's run time helps in planning irrigation schedules, ensuring uninterrupted operation, and selecting appropriate battery capacity for your needs.

4. Using the Calculator

Tips: Enter battery capacity in Ah (found on battery label), battery voltage (typically 12V, 24V, or 48V), and Rainbird inverter power consumption in watts. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What affects actual run time?
A: Actual run time may vary due to battery age, temperature, inverter efficiency, and system load variations.

Q2: How can I increase run time?
A: Use a higher capacity battery, multiple batteries in parallel, or reduce inverter power consumption.

Q3: What's typical run time for Rainbird systems?
A: Typical run times range from 8-24 hours depending on battery size and system configuration.

Q4: Should I fully discharge my battery?
A: No, deep discharging reduces battery life. Maintain at least 50% charge for lead-acid batteries.

Q5: How accurate is this calculation?
A: It provides a theoretical estimate. Real-world results may vary by 10-20% due to efficiency factors.