I would suggest powering all of your APs via a POE switch. A lot of POE switches have the ability to disable and enable power to a specified port on a schedule. It makes it much easier to remotely manage your APs by having them all powered from a single POE switch.
You can still power your APs via POE even if they don't accept POE input by using POE splitters such as these.
That company makes some great, extremely powerful POE switches as well.