Should I let iPhone 5 die all the way before doing first charge?

I have some people telling me that I should let it die all the way before first charge and I have people telling me it shouldn't die.

Why?
its not the 80's.
you no longer need to do that with todays batteries.
charge whenever you want for how long you want it will be the same.

It doesn't matter I have one and it doesn't have a long battery if you use it a lot but it charges fast and that won't change if you let it die or not.

This is a common myth in the smartphone world, but it's actually the opposite. If you fully discharge your battery you will get fewer charge cycles, which lowers your battery life. Lithium batteries work best when you charge them often, according to batteryuniversity you will only get 300-500 cycles if you let it go all the way dead, but if you let it only go up to 25% dead you will get 2000-2500 cycles, making your battery life 20% longer.

Tl;dr charge it a lot

  • What is the best way to charge an iPhone 5s for the first time? I'm getting my first iPhone, a 5s, soon, and I'd like to know what would be the proper way to charge it. I've heard different things from different people lately: charging it on airplane mode, charging it all the way but not using any apps, etc. Is there a proper way to charge it for the first time to make sure the battery doesn't die quickly, or is there a preferred way that anyone has observed? Please let me know.
  • What if I didn't charge my iPhone 5 before using when I first got it? So I just got my first iPhone ever and didn't know that you're supposed to charge it for 8h first before beginning to use it. I charged it (even though it looks fully charged) as soon as I got home but as it was charging I sent out a few smses. Anyway so I never took it off the charger but Mum says that cos I already started to use it, it will never work at its optimum anymore. Is that true or is it still safe since I used it while it was still charging?
  • Should I let my iphone die then recharge? I have an iPhone 5 is it true thats it's good that once a month you let the phone die out then recharge it to 100%, I usually recharge it at 80% or less so I have it charged the whole day, I charge it overnight also. Is it true tht you should do this?
  • Should i let my iPhone die completely before I charge it? Okay so I just got an iPhone 4 and I let it go dead before I charged it. Then let it charge completely before using it. Do I have to do that every time or can I plug it in whenever I want and charge it.