No. Your battery status simply tell you the expected duration based on your past usage. Take it with a pinch of salt though.I just don't get how you guys get 2 days use. Every time I charge my phone and take it off the charger at 100% it says on average 18hrs left on stand by. Every time. Is my battery faulty?
There is no need to shut down your phone too. Doing so actually consumes more power.
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