mobile

Hello :)

Today i have bought a galaxy s6 , and i have a question :
I've heard that the quick charging don't charge the phone at the top or that it isn't good for battery , is it true?
And , how can i disable the quick charging?

I've alredy heard that with another charger (example I have the charger of my LG G2) , i can "disable" the quick charging.
I don't know if it is true (and i don't know if it's good for battery using another charger who isn't the official), so i hope that someone can help me

Thanks :)