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  4. What is the battery capacity of a lithiu...

What is the battery capacity of a lithium ion battery?

What is the battery capacity of a lithium ion battery?

  1. The capacity of the battery is divided into the rated capacity and the actual capacity. The rated capacity of the battery refers to the stipulation or guarantee that the battery should discharge the minimum amount of electricity under certain discharge conditions during the design and manufacture of the battery. Li-ion stipulates that the battery should be charged for 3 hours under normal temperature, constant current (1C) and constant voltage (4.2V) controlled charging conditions. The actual capacity of the battery refers to the actual power released by the battery under certain discharge conditions, which is mainly affected by the discharge rate And temperature (so strictly speaking, the battery capacity should specify the charging and discharging conditions). Common units of capacity are: mAh, Ah=1000mAh).

  2.what is the internal resistance of the battery?

   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 to measure 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 ohm mode.


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