Originally Posted By: IzzyJG99

iPhone batteries have Lithium Polymer (and Lithium Ion in older models) which require to be totally discharged to the point of the phone not capable of being turned on. This realigns the electrons in the battery and makes the battery work properly. If you don't do this every (according to Apple) 10 charges it'll ruin your battery.


To the best of my knowledge, running the battery down to zero helps to syncronize the battery meter. I'm not sure if it does anything for the actual battery though, as most rechargeable lithium batteries can't be discharged below 3.6V without damage. I could be totally wrong, but I would imagine iPhones have some sort of overdischarge protection?


Edited by LED (01/08/12 12:47 PM)