For those concerned about battery life and optimizing charging - thereās a really simple answer here - charge your phone when it needs it, versus based on your own habits. Lithium Ion tech has been well optimized in the last decade. Every OEM has power management built in, to do their best at extending life of the battery in the device. Personally, I donāt charge my devices until Iām looking at around 15-20% battery remaining. From there, it doesnāt matter what charger I plug it into. Optimized charging (if done during the overnight), will charge to 80%, and then wait until my alarm is set to go off before it finishes charging to 100%. This is by design. Itās bad for a battery to sit at 100% all the time. This is true for any battery. This is why Apple started doing this with macOS too - though, its admittedly harder.
That said, you canāt live in fear about battery life. Most of us upgrade yearly anyway, and rarely have to be concerned with the long-term lifespan of our batteries. If you are, make sure you have AppleCare+ and youāll be good to go.