How to charge a new Iphone 5?

So i just got. The new iphone 5, it had 55% and i used it down to like 28 percent then pluged it in and charged it to 100 so i heard you are supposed to drain it to 1% first then chargeit so did i do it wrong and if so how do i fix it

Yes you did it wrong it will now explode.

Rechargable batteries tend to develop a memory. They need to be drained(by usage) every once and a while to remind them what a full charge is. You've done no damage.

Nah, just charge it up overnight… I did that with my first iphone and the battery is still great after 3 years. I always charge it when its 20 to 30 percent… And always charge overnight.