Amp Hours Formula:
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Amp hours (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.
The calculator uses the simple formula:
Where:
Explanation: This formula calculates the total electrical charge by multiplying the current flow by the duration of time.
Details: Amp hours calculation is essential for determining battery capacity, sizing electrical systems, estimating runtime for devices, and planning power requirements for various applications.
Tips: Enter current in amperes and time in hours. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What's the difference between amp hours and watt hours?
A: Amp hours measure electrical charge, while watt hours measure energy. Watt hours = amp hours × voltage.
Q2: How accurate is this calculation for real-world applications?
A: The calculation provides theoretical values. Real-world battery performance may vary due to temperature, discharge rate, and battery age.
Q3: Can I use this for AC circuits?
A: This formula works for DC circuits. For AC circuits, additional factors like power factor need to be considered.
Q4: How do I convert amp hours to milliamp hours?
A: Multiply amp hours by 1000 to get milliamp hours (mAh).
Q5: Why is amp hours important for battery selection?
A: Amp hours indicate how long a battery can deliver a specific current, helping you choose the right battery capacity for your needs.