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What do you mean by 3.7V and 4.2V on the lithium battery?

From:CTECHI GROUP Limited     Release time:2019-09-29

Overview:The lithium battery standard 3.7V or 4.2V is actually the same, but the manufacturer has labeled it differently. 3.7V refers to the platform voltage (ie, typical voltage) that is discharged during battery use, while 4.2 volts refers to the voltage at full charge.

What do you mean by 3.7V and 4.2V on the lithium battery?

The lithium battery standard 3.7V or 4.2V is actually the same, but the manufacturer has labeled it differently. 3.7V refers to the platform voltage (ie, typical voltage) that is discharged during battery use, while 4.2 volts refers to the voltage at full charge.

Generally, when the no-load voltage of the lithium battery is put below 3.0V, it is considered that the power is used up (the specific value needs to look at the threshold value of the battery protection board, for example, it is as low as 2.8V, and also has 3.2V). Most lithium battery discharges can not put the no-load voltage below 3.2V, otherwise excessive discharge will damage the battery (usually the lithium battery on the market is basically used with a protective plate). 4.2V is the upper limit of the battery charging voltage. Generally, when the no-load voltage of the lithium battery is charged to 4.2V, the electricity is full. During the charging process, the voltage of the battery gradually rises to 4.2V at 3.7V, and the lithium battery cannot be charged. The load voltage is charged above 4.2V, otherwise it will damage the battery, which is the characteristic of the lithium battery.


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