Good/healthy way to charge the phone?

[Big Boar]

I'm happy to tell that I just ordered a Mi 9t! My first Snapdragon 700 series phone! Because it's brand new I'm very sensitive for it and I want to "baby"(very careful) it. So I wonder what is a good way to charge a phone without damaging it a bit, like should I completely turn it off(holding power button and select off)? Or is it fine that only the screen is off and charge it? I read that you shouldn't make it reach it 100% and 0% because it will damage the battery is it true though?

 

[Dannydet]

You can never overcharge a phone, it will stop charging at 100%....
No need to shut it off while charging, you can leave it on always, screen on or off does not matter.
Enjoy your new phone

 

[svim]

I'm going to recommend you take a look at https://batteryuniversity.com , its articles often include technical details to back up general statements and they also get updated when necessary. Here are a couple of articles you might find useful:
https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
https://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

That said, there's a massive amount of out-dated information and opinions touted as fact online so finding relevant and accurate info about smartphone batteries can be a daunting task. Choose your sources carefully.