Safe to use?

[Benji222]

Is it safe to use this simple usb extender when charging the iPhone4 or iPhone3GS?

 

[deannnnn]

Sure why wouldn't it be?

 

[celticpride678]

Yes.

 

[Benji222]

Didnt know if it would somehow mess up the way the charge is given to it. Sorry for the lame/dumb question, the last thing I want is a defective iPhone4 battery.