Battery Power Consumption Calculator

How to Use This Calculator

To calculate battery power consumption:

1. Enter the battery capacity in milliampere-hours (mAh).
2. Enter the voltage of the battery in volts (V).
3. Enter the power consumption of your device in watts (W).
4. Click "Calculate" to see the estimated battery life.

The calculator will show you how many hours the battery will last based on the given parameters. You can also view a chart showing the power consumption over time.

Formula Used

This formula converts the battery's energy capacity to watt-hours and then divides by the device's power consumption to find the estimated runtime.

Worked Example

Let's calculate the battery life for a smartphone with the following specifications:

• Battery Capacity: 3000 mAh
• Battery Voltage: 3.7 V
• Device Power Consumption: 5 W

Using the formula:

Battery Life = (3000 × 3.7) / 5 = 11100 / 5 = 2220 hours

This means the battery would last approximately 2220 hours, or about 92.5 days, under these conditions.

Interpreting Results

The calculator provides an estimate of how long a battery will last based on its capacity and the power requirements of the device. Here's what the results mean:

• High Battery Life: Indicates the device uses relatively little power compared to the battery's capacity.
• Low Battery Life: Suggests the device consumes significant power, requiring more frequent charging.

Use this information to choose appropriate batteries for your devices or to optimize power usage to extend battery life.