[Q] Why can't I charge with my phone powered off? topic

I powered down my phone so that I could let it charge more quickly for a while. Once powered down, I plugged it in, the LG logo came up which is normal, then it showed the white battery logo in the center of the screen and showed charging, just as it should... But, after about 30sec longer, the phone just powered on, as if I had hit the power button (showed the boot animation and the just booted up.)
No matter what I do (be it unplug the phone power it off, then plug it in. Or turn it off while its plugged in) It will just turn itself on...
Why? lol

Sprint G2
ROM: Liquid Smooth 4.4.2