Battery Life Formula:
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The battery life conversion calculator estimates how long a battery will last based on its energy capacity (watt-hours) and the power consumption of the device (watts).
The calculator uses the battery life formula:
Where:
Explanation: The formula divides the total energy available in the battery by the rate at which the device consumes energy.
Details: Accurate battery life estimation helps in selecting appropriate batteries for devices and planning for power needs in portable applications.
Tips: Enter battery capacity in watt-hours and device power consumption in watts. Both values must be positive numbers.
Q1: How do I convert mAh to Wh?
A: Multiply mAh by voltage (V) then divide by 1000: Wh = (mAh × V) / 1000
Q2: What affects real-world battery life?
A: Temperature, battery age, discharge rate, and actual power consumption variations affect real performance.
Q3: Is this calculation accurate for all battery types?
A: The formula works for all battery types, but real performance may vary based on battery chemistry.
Q4: How can I improve battery life?
A: Reduce device power consumption or use a battery with higher capacity (more Wh).
Q5: Does this account for battery efficiency losses?
A: No, this gives theoretical maximum. Actual life may be 10-25% less due to conversion losses.