Battery Energy & Run Time Calculator

Understanding Battery Energy & Run Time

The battery run time is the amount of time a battery can supply power to a load before it is fully discharged. The run time depends on two key factors: the battery capacity (in Ampere-hours, Ah) and the current drawn by the load (in Amps, A).

Formula Used

The formula to calculate the battery run time is:

Run Time (hours) = Battery Capacity (Ah) / Load Current (A)

Where:

  • Run Time: The total time the battery will last under the given load (in hours).
  • Battery Capacity: The total amount of energy a battery can store (in Ampere-hours, Ah).
  • Load Current: The current drawn by the load connected to the battery (in Amps, A).

Why is Battery Run Time Important?

Understanding battery run time is crucial for ensuring that the battery will provide enough energy for the required duration of operation. It's important for applications like backup power systems, electric vehicles, or renewable energy systems to estimate how long a battery can power a specific load before recharging is needed.