LG VI-125

I just received my LG VI-125. One thing I've
noticed is that the LCD backlight stays on
continuously when the phone is connected to
the charger. This is the case regardless of
whether the flip opened or closed. An LG rep
told me that there's no setting that will
change this, my phone isn't defective, and
this is common in other LG models. This is my
first LG, but I've never seen this on any
other phone that I've owned. If anyone can
shed some light on whether or not the rep was
correct, I'd appreciate it.