At what percentage should I charge my phone?

At what percentage should I charge my phone?
Plug it in when the phone is between 30 and 40 percent. Phones will get to 80 percent quickly if you're doing a fast charge. Pull the plug at 80 to 90, as going to full 100 percent when using a high-voltage charger can put some strain on the battery.

Reference:
Charging Your Phone Overnight: Battery Myths Debunked | News ...
Apr 20, 2019

At what percentage should I charge my phone?,frequently asked question,question and answer,answer,