1. What is Amp Hour?

Amp hour (Ah) is a unit of electric charge commonly used to measure battery capacity. It represents the amount of charge transferred by a steady current of one ampere flowing for one hour.

2. How Does the Calculator Work?

The calculator uses the simple equation:

Where:

• \( Ah \) — Amp hours (the result)
• \( A \) — Current in amperes
• \( Time \) — Duration in hours

Explanation: This calculation shows how much total charge flows in a circuit over a given time period.

3. Importance of Amp Hour Calculation

Details: Amp hour ratings help determine how long a battery will last under specific loads, crucial for designing electrical systems and selecting appropriate batteries.

4. Using the Calculator

Tips: Enter current in amps and time in hours. Both values must be positive numbers. The calculator will compute the total amp hours.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Ah and Wh?
A: Amp hours (Ah) measure charge, while watt hours (Wh) measure energy. To get Wh, multiply Ah by voltage.

Q2: How does this relate to battery capacity?
A: A 100Ah battery can theoretically deliver 1A for 100 hours, or 5A for 20 hours (though actual performance varies).

Q3: Can I use this for AC circuits?
A: This simple calculation works for DC. For AC, you'd need to consider power factor and RMS values.

Q4: Why is amp hour important for solar systems?
A: It helps size battery banks to store enough energy for periods without sun.

Q5: How accurate is this calculation?
A: It's mathematically precise for constant current. Real-world systems may vary due to temperature, battery age, etc.