How Long Should I Charge a New Smartphone Before First Use?

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This is a major question someone sent to me and I decided to bring it down here because I know we all have different views about this. Some of us don’t even bother to charge the phone once the sales man deliver it, we just go ahead with usage until it’s out of juice. While some will turn it off and charge it before usage. Which one is acceptable?


Here is my own advice, drain the new battery to below 5% [probably 1-5%]  and then keep it for full charge[100%] for the first time, this way you will kind of calibrate the new battery's power and configure it's capacity.


How many hours do you charge your new smartphone before usage? Do you use your smartphone while charging or you turn it off? 

Experts advised that A device should be turned off while charging. This allows the battery to reach the threshold voltage unhindered and reach a low saturation current when full. A parasitic load confuses the charger.

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