As I understand it, all the batteries are charged before being shipped anyway. That is as good as / counts as the first charge. You should be able to use it at will.
Generally I start playing. After the first 3 or 4 full charge cycles it gets to the optimum in my experience, but that may be the phone calibrating itself.
---------- Post added at 12:28 PM ---------- Previous post was at 12:25 PM ----------
One thing that I do believe makes a difference to battery life is a slow charge. I keep my Note 3 on charge at night using my Note 1 charger, and it is taking about 6 hours to fully charge. I am not certain this is 'better' than a fast charge, but it seems logical that the battery could last longer (more cycles). Does anyone know (not guessing, like me)?
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