I just installed new battery on my iPhone, am I supposed to drain it all the way down?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by bobright, Nov 1, 2017.

  1. bobright macrumors 601

    Jun 29, 2010
    So I just installed a new battery on my iPhone 6 was scared going in but it was a success. I didnt even have to remove the display. Its showing 0 cycle count and a full charge capacity in CoconutBattery.

    Got just one question should I drain the battery all the way down to nothing to do some kind of calibration? Or do I just charge to 100%? It's at 42 percent out the box.

  2. Sharkoneau macrumors 6502a


    Jan 13, 2017
    My advice would be to let it go through a few days of use, and thus a few natural charge cycles. If you discover anything wonky with your percentage indicator, it may be worth doing a calibration. Otherwise, I think it’s fine - as new phones with factory-installed batteries don’t require calibration upon unboxing.
  3. bobright thread starter macrumors 601

    Jun 29, 2010
    Ok thanks will do

    Btw wow battery life is awesome pretty sure I had a bad battery for a long time. I was chalking it up to iOS 10 and 11. I’ve been sitting on 100 percent for about an hour now soooo thrilled.
  4. bobright thread starter macrumors 601

    Jun 29, 2010

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