What is the internal resistance of the battery? What is the open circuit voltage?

It refers to the resistance experienced by the current flowing through the battery when the battery is working. It is composed of ohmic internal resistance and polarization internal resistance. The large internal resistance of the battery will reduce the battery discharge working voltage and shorten the discharge time. The internal resistance is mainly affected by the battery material, manufacturing process, battery structure and other factors. It is an important parameter for weighing battery performance. Note: Generally, the internal resistance in the charged state is the standard. To measure the internal resistance of the battery, a special internal resistance meter should be used instead of a multimeter in the ohm range. What is the open circuit voltage? It refers to the potential difference between the positive and negative poles of the battery when the battery is in a non-working state, that is, when there is no current flowing through the circuit. Under normal circumstances, the open circuit voltage after Li-ion overflows is 4.1-4.2V. Left statement: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: Black gold battery and electric vehicle lithium ion What is the difference between batteries?