How to Calculate Capable Duration of Maintaining Power Supply With a B
How to Calculate Capable Duration of Maintaining Power Supply (Hr)
When designing or setting up a battery-powered system, it's crucial to understand how long your power source can maintain the output before it depletes. This is known as the capable duration of maintaining power supply—or simply how long your device can run on a given battery.
In this guide, we’ll walk you through the simple formula to calculate this duration and provide you with an easy-to-use calculator to get instant results.
🧮 The Formula
To calculate how long a battery can power a device, we need the following:
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Battery Voltage (V)
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Battery Capacity (Ah)
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Device Output Voltage (V)
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Device Output Current (A)
The formula:
This formula gives you the duration in hours (Hr) for which the power supply can be maintained.
⚙️ Example
Let’s say you have a 12V battery rated at 100Ah. Your device needs 24V and consumes 2A.
🔢 Try the Calculator
