Hi I know most people throw away their iphones as soon as a new health fad appears on the internet - 

But there may be one of two out there that do special things to charge their phones to extend its lifespan ... could those please explain how?

ie charging with high amp charger (ipad charger) would decrease battery life?

charging at 80% every night and leaving it overnight would decrease battery life?

best to charge from 50-80%? but how to achieve that?

if you don't bother yes I understand ... but looking for those true geeks out there :)