Is Battery Calibrated After Drain and Full Charge OR...

There is NO need to drain a Lithium-Ion battery to the ground...
in fact, it is considered harmful by the manufacturers IF you persist in doing it on a regular basis.

They highly suggest that we consider 40% as being discharged and to put it back on charge at that point.
I do try to adhere to this as much as possible.

Why?

1. the battery can reach 95% or more without incurring high internal temperatures.

2. the length of time to recharge is much shorter, which is why #1 occurs.

3. 40% is about the nominal "storage value" for a Lithium-Ion to be left alone for months at a time w/o harm.

4. Batteries that are kept in the upper regions of the "state of charge" will literally have a Life Span of years, if not decades...

I have a very old Galaxy S Fascinate that still has the OEM battery in it, and it still gives a very reasonable time of use before needing to be recharged and that is at the 40% point. I have always practiced what the OEMs preach, and it has always worked for me.

nearly everyone who complains of piss poor battery performance is the same guy who insists that he should be able to run it down to 10% or worse on every discharge cycle. Sorry, but you just cannot defeat the Laws of Physics. The chemistry can only do so much, and you need to adhere to the manufacturers recommendations... or you should at least.

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Is Battery Calibrated After Drain and Full Charge OR...