評価: 49
3
1
So my iPhone dies usually at 40-60%, its not normal and I know I need to calibrate, but for calibrating, battery needs to be dead completley, how can I drain to 0% if it turns off when there is still juice left and only turns on when connected to charger?!
評価: 283
3
Did you check the battery health on your battery?
Are you sure it just needs to be calibrated instead of being replaced?
You can drain it to 0 by continuously pressing the power button to show that plug in charger sign, or just let is sit for a few days.
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