What Is Battery Internal Resistance?
What is Battery Internal Resistance?
Battery internal resistance refers to the resistance of the battery’s internal materials and the resistance of the battery’s internal structure and electrolyte to current flow. When the current flows through the battery, due to the internal resistance of the battery, there will be a certain voltage drop inside the battery, and this voltage drop is the internal resistance of the battery.
The effect of Internal Resistance on battery performance
The greater the internal resistance, the weaker the battery’s ability to output current, and the battery itself will heat up, resulting in energy loss.
It can be seen that the internal resistance of the battery is one of the important factors affecting the performance of the battery. Normally, the internal resistance of the battery will change with the service life and temperature of the battery. If the internal resistance of the battery is too large, it will lead to a decrease in the battery voltage and an increase in energy loss, thereby reducing the service life and performance of the battery.
Therefore, when purchasing a battery, in addition to paying attention to the capacity and voltage of the battery, you also need to pay attention to the internal resistance of the battery. At the same time, when using the battery, pay attention to reasonable use and maintenance, avoid over-discharging and over-charging, so as to prolong the service life of the battery.