So I've charged my iPhone to 100% since the first day I got it before using it and I am now at 10%, do I wait until it goes to 0% and then fully charge it? Apple's website says, "Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down)." My usage stats don't show anything. (Usage is blank and Standby is blank in the Time since last full charge.) So is it safe to wait until the iPhone 3G goes to 0% and then fully charge it?