Charging Overnight

I highly do not recommend you to do this! cause it may harm your battery and after some time your battery will start to get worse and worse. ( it is from my own experience ))) )
p.s. if you want your battery to work better and longer then try to charge it when % drops below 20 and unplug charger when it is 100

That is no problem. I charge my iPhone and iPad overnight so that I have a full charge every morning. You cannot hurt it by doing this.

venomx92 wrote:

Is it ok to charge my iphone 4s overnight via the plug socket + official cable

thanks

Perfectly OK.