Originally Posted by soozieq
I have the 808 which is identical to the 818 (except for ths software it uses) and I can turn mine off by holding down the power button until I see the message: "See you later" on the screen.
Yeah, but that still only puts it in standby mode (which you'll notice by the fact that it turns on instantly when you press a button), that is if it works the same way as the A818 (I also get the "See you later" message when doing that). The only way to completely turn it off seems to be to leave it untouched for 24 hours. Well, I'm positive it doesn't consume much energy while in standby, so it shouldn't affect the battery very much.