What is the 20 90 rule for battery?
What is the 20 90 rule for battery? Recharge whenever convenient. Don’t let it fall below 20% (or higher) and avoid fully discharging the battery unless calibration is needed. Unplug at battery level between 80% (or lower) and 100%. Don’t let your phone stay at 100% level for too long, i. The “40–80 rule” suggests […]
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