Why are my usage statistics not resetting after charging back to 100% overnight? Left the phone (powered down) on the charger all night. Woke up and took it off the charger and it was at 100%. Time since last full charge still showed usage and standby data from previous day and showed that, "iPhone has been plugged in since last full charge." Am I supposed to run it completely to 0% before charging to get a reset of the stats?