The state of charge (SoC) of a battery is the percentage of total capacity that is currently available for use.SoC is a measure of how much energy is stored in a battery, and is typically expressed as a percentage or as a fraction of total capacity. For example, a battery with an SoC of 50% has half of its total energy available for use.The concept of SoC is important for understanding how batteries work and how they can be used effectively. Batteries have a limited capacity, and when that capacity is reached, the battery needs to be recharged. The state of charge can help to determine when a battery needs to be recharged, and can also be used to estimate how long a device can run on battery power before it needs to be plugged in again.In general, the higher the state of charge, the longer a device will run on battery power before needing to be recharged. However, there are other factors that can affect runtime, such as the discharge rate and the efficiency of the device.
