It is clear that the conditions for the end of charging are that the voltage meets the set 4.17v and the charging current is less than 64mA. However, the charging time of the BQ25895M charging IC is close to 12 hours, of which there are 8 hours to maintain 50mA current. After investigation, the charging voltage has been unable to reach 4.17v, and is maintained at about 4.15v. When I unplug the DC and plug in the DC, the voltage will rise and the charging will end. May I ask how this phenomenon is caused?