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Ever wonder how long a drill battery will last on a job? This cordless drill battery life calculator gives you a practical estimate in minutes and tells you what that means for common tasks. Select your battery’s specs and your type of work to begin.
How is this calculated? This estimator uses your battery’s total energy (Watt-hours) and divides it by an average power draw for the selected task. It also factors in a “duty cycle” to better reflect real-world start-and-stop usage.
Disclaimer: This is an **estimate**. Actual runtime varies based on tool efficiency, material hardness, bit sharpness, and ambient temperature. Use this as a guide for planning, not a guarantee.