iPhone 8 plus proper charging
Can I charge my phone overnight?
Can I use it while charging?
At what range of percentages should I keep my phone charged? Some sites mention from 45% to 75% is the preferred range, Is that true?
Yes you can charge your iPhone overnight. iPhone cannot be overcharged.
Yes you can use it while charging it, it will just charge slower.
Just don't let your battery run all the way down. If you charge it at night, it should hold enough to last during the day.
If you start to run low, just charge up anytime.