hello all. just to make sure about the phone battery.

[Big Boar]

so in the past someone told me that newer phones cannot be overcharged. im looking for work and if im in duty i need my phone full battery when waking up, so im thinking to plug charged my phone before sleeping so... is it fine if i charged my phone and leave it until morning? won't there be any damage doing it every night? my phone is a 2016 zenfone 3 and its a Li-ion battery. thank you for answer! just want to make sure my phone won't be damaged.

 

[Xyro]

Yes, you understand correctly. The charging circuit in the phone will cut power to the battery when it is full, and it won't kick back in again until the battery has depleted by a few percentage points. The phone will report to the user that the battery is at 100% the whole time, but in reality it may be depleting down as far as 95% before the charging circuit kicks back in.

So, no, you won't risk over charging your phone by leaving it plugged in overnight.

That said, if you wanted to preserve your battery as long as possible, the optimal method (with lithium ion batteries) is to keep it between 20% and 80% charged. The more time spent outside that range will decrease the useful life of the battery. But, that's not really a realistic or practical way to use your phone for most people.

A final tip would be that temperature is also a big determining factor in your battery's lifespan. If your phone has any kind of fast/dash charging mode, this will generate much more heat than standard charging. You're better off charging slowly, if you can afford the time.

 

[Bopper]

All I know is that five hours of battery charge is enough.

 

[v777779]

just want to make sure my phone won't be damaged.

Please note, that 3 years that the maximum term of life for any accumulator. After 3 years battery significantly degrades.
So it's not unusual that working time of device after full charge is reduced by 3 or 5 times or even 10 times.
https://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery2.htm

And yes, you can keep get connected phone and charger all the time. It's safe.

 

[Hadron]

I have never had the working time of a phone battery degrade by more than a factor of 2 over 5 years, so I think those numbers are a bit pessimistic.

 

[Jasmin74]

which phone brand & version?

 

[Bearsyzf]

I've had my Note 4 since they came out and i just had to replace the battery, i charge mine every night.... i say it was a pretty good run with the old battery.