Does Leaving Your Phone Plugged In Ruin The Battery. On the other hand leaving the battery charged fully for an extended period of time could result in a loss of capacity and shorten its life. If the outlet or cigarette lighter does not have a power switch and stays powered on even when the vehicle is off there should not be any USB cables charger or devices left plugged in so that a dead car battery is avoided.
So put very simply leaving your charged phone attached to the charger uses 10 times the energy that leaving the charger dangling would. It may seem counter-intuitive but keeping your phone constantly charged to 100 isnt good for it either. Pushing your phone to extremes in either direction will cause wear and tear on the battery since it only has a finite number of charge cycles.
The lithium Ion battery specifically Lithium Cobalt Oxide battery is the answer to the prayers of companies who manufacture portable electronics.
So when Optimised Battery Charging is active your iPhone will delay charging past 80 but only in specific situations. If the outlet or cigarette lighter does not have a power switch and stays powered on even when the vehicle is off there should not be any USB cables charger or devices left plugged in so that a dead car battery is avoided. While its convenient to leave your phone plugged in while you drive it might not be the best choice. Inside is most likely a lithium-ion battery which is partly responsible for how thin.
