Battery capacity measurement method
method one:
There are professional battery compartments
If it is an individual, find an adjustable load resistance and a DC power supply with adjustable current to calculate the battery capacity by charging and discharging time,
Charge current charge time {{0}} battery capacity (charge from 2.7V or 3.0V to 4.2V) or discharge current discharge time = battery capacity (discharge from 4.2V to 2.7V or 3.0V)
The second step is to fully charge the battery to the rated voltage, usually 4.2V
The second step is to discharge the battery to the rated voltage, and record the amount of power discharged, the voltage is generally 3.0V
The third step, charge the battery to the normal amount, generally set to 3.8V-4.0V
The capacity recorded in the second step is the capacity of the battery.
Method three:
The power meter integration function can be used to measure the lithium battery capacity required by the device. I usually use the PA310 Zhiyuan power meter to measure the lithium battery capacity. After measuring the capacity, I can select a battery with a larger capacity for the device.
