Disable optical drive and wireless card

Hello everyone,
I am an openSUSE new bie. My laptop is Acer Aspire TimelineX 4820TG with openSUSE 13.1 x64. I have not used the DVD Drive for months so I want to disable it to save energy, at least when my lap is using battery. I tried TLP but it didn’t work!

Power off Optical Drive in Drive Slot or Ultrabay
 	sudo tlp bayoff
  	**Hints:**
 


  -  		Re-power the drive by releasing and reinserting the drive  slot/Ultrabay eject lever; on newer models push the media eject button
  -  		Devices other than optical drives – in particular hard disk drives – are *not affected*
 by this command.


My area often have powercut :’(, so I also want to disable wireless card when I am using my lap on battery to lengthen battery life. :shame:
Thanks a lot.

P/S: Sorry for my bad English. :stuck_out_tongue: