1. donawalt's Avatar
    Just confirming with the experts here, I think the latest information says it is no longer necessary to drain a new battery then recharge it after getting a new iPhone - not needed for best battery use, and not needed to calibrate the battery percentage available. Is that correct? Thanks!
    09-26-2015 09:17 AM
  2. kch50428's Avatar
    Correct...
    donawalt likes this.
    09-26-2015 09:22 AM
  3. neurodave's Avatar
    Nope, that is no longer a requirement, although you'll still find the old-timers who will hold onto that rule to the very end. I personally still do it (and did it with my iPhone 6s) just because. It doesn't do anything, but I like letting it run down and then going up to 100%
    donawalt likes this.
    09-26-2015 09:23 AM
  4. nr2d's Avatar
    The battery is Lithium Ion. They wo'nt develop the memory like NiCad batteries. But I feel that is still good to run the battery down and then re-charge it. I wouldn't run it down to )% but to about 10 - 20%.
    09-26-2015 07:03 PM
  5. jdhooghe's Avatar
    At the very least it will help calibrate the battery sensor in the iPhone to give proper drain measurements. I think a little while back there was a person who saw that the battery percentage dropped a few percent at once intermittently; I could most definitely be wrong though. The batteries themselves don't need to be drained all the way though.
    09-27-2015 05:02 PM

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