What happen when we charge our Mobile phone over night

what happen When we charge our phone over night before that we move to the charger working, when the mobile phone is connected the A.C current of 240V step down to about 5V and later it converts into D.C current by rectifier and filtered and connect to the charging port

Intially the phone get completed charged and the automatic turn off system cut-off the charging but after few minutes Mobile charge drain from 100% to 99% but it is still connected so the circuit will again closed and get charge the mobile phone to 100% and it will loop

It may affect your phone charger and battery

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