many things sorted out. Well it's mainly for Notebooks, but those are the same type of batteries.
Essence of it:
There is no Overcharge,
partially discharges (not full) are much better for your battery
Full Discharges are bad.
There is a point in "calibrating" your battery:
The battery itself will not directly benefit from a 100% discharge/recharge cycle (the opposite, in fact), the calibration system, however - which serves as the battery's life meter - will more accurately predict remaining battery life as a result. This will not increase the life of the battery, but will allow you (as a user) to have a better gauge of the remaining on-time.
Read more at http://www.gamersnexus.net/guides/89...dETELQWJOJv.99
You only should do this, if your battery drops to 1% and remains there for longer than average under that condition.
Lets say, your battery drops to 1% and you can easily keep going over half an our with screen on but it should be dead by then.
Or the other way around:
Your device powers down at 5% (jumping from 5% to 1% and then powering off)
Then you most probably need to calibrate your device (not the battery) to match the actual capacity of your battery.
This can only be done by compeletly discharging your phone and let it power off
i just let my device charge over night. so i know i'll easily get over a day. I was never in a Situation where my battery was so low, that i need to be afraid, that it turns off