Suggest tips to enhance life span of battery for iphone?

Is it necessary to consume juice fully before we plug in charger to enhance battery life span?

Get an Android

Just download the Barttery Saver app it's gives you great life for your battery

I've been told that when you double click the bottom button, a smaller menu appears on the bottom of the screen. Delete all the apps on their. An Apple employee told me that it takes up space.

Don't start charging it until it's at least down to 20%, and completely deplete the battery at least once a month.

Download 'battery doctor' this app is gonna help for sure.