Battery Life Calculator

Estimate how long a battery will last based on device power consumption.

Load Parameters

Battery Capacity

Device Consumption

Efficiency Factor (0.1 - 1.0)

Default 0.85 accounts for real-world inefficiencies.

Estimated Runtime

You can run for5h 6m@ 85% Efficiency

6.00 hours

Theoretical Max

Note: Typical discharge curves are non-linear. As voltage drops, current draw may increase for regulated loads (DC-DC converters), reducing runtime faster than calculated.

Overview

Battery life estimation helps predict device runtime before recharging. It depends on battery capacity and device power draw. Screen brightness, processor load, and connectivity significantly impact actual battery life.

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Pro Tips

Reduce screen brightness to extend battery life significantly.
Disable unused connectivity (WiFi, Bluetooth) when not needed.
Battery saver modes can extend life by 20-40%.
Background apps consume power even when not actively used.

Fun Facts

"Average smartphone battery life is 6-10 hours of screen time."
"5G connectivity can reduce battery life by 10-20%."
"Laptop batteries typically last 4-12 hours depending on usage."
"Battery health degrades about 20% after 2-3 years of use."

Formula: Battery Life (hours) = Battery Capacity (Wh) / Power Consumption (W)

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