Question

Do You Have to Let the Battery Die Completely Before Charging It to Increase the Battery Lifespan?

Answer 1

Yes, draining the battery power before charging it will increase its lifespan.  Charging it once in a while or every time it is just low battery is not good at all.

Answer 2

It is NEVER good to allow your battery drain out completely before charging. It weakens the battery. Ideally you should charge immediately you get the first low-battery warning.

Answer 3

No, charging your device after letting it die completly will not increase your battery's lifespan, it's how you use you devices will either make your devices' lifespan shorter or longer.