About auto cutoff after fully charged

[jacky701]

I have M21 and i usually plug it overnight for charging and it stays plugged for atleast 6-7hrs. But it only need nearly 3 hrs to charge from 0-100%.So my question is, is there any problem in doing so? Is it any harm to battery. Is there any autocut off feature in this model

#charging

[vishallote1989]

It will not harm your device battery. But you shouldn't do it.

[jacky701]

is there an autocutoff feature in this mobile?

[shaktiii00]

Do one thing sir..when you charging overnight just turn off the fast charging then again turn on at morning

[vishallote1989]

Nothing has mentioned by Samsung. So its better you don't charge it overnight.

[Ehsank]

now a days mobiles are auto discharge after 100% even you connected to charge

[Raz_]

Smartphones has became "smart" over these years, and it knows when to stop charging, so no worries, you can keep on charging overnight.

[jacky701]

@venom if there is an autocut off feature(don't know whether there is) then what's the problem for overnight charging? its my doubt

[AMPK · Accepted solution]

It is always better to charge upto 80% for better life of the battery. it only takes 0.21% life cycle.

[babudas]

it is not necessary to charge 100%