IPHONE USERS! What happens if i don't fully charge my new iphone before its first use?

I really care about my battery and many people say that i should fully charge it before its first use and i'm really worried if not fully charging it before its first use has affected the battery.

Nothing!
Its Lipo Batteries they can handle it!
Before you were suppose to be careful when the phones had NIMH batteries!

Nothing, I wouldnt charge unless its below 25%

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