I lose over 20% of battery life overnight (seven hours). I am running Yosemite 10.3. Any advice?
MacBook Air (13-inch Mid 2013), OS X Yosemite (10.10.3)
Try turning off Wake for Network Access in the Energy Saver System Prefs.
Wake for Network Access is not an option on the Battery tab in Energy Saver System Prefs. The only options are as follows:
Put hard disks to sleep when possible - checked
Slightly dim the display while on battery power - checked
Enable Power Nap while on battery power - not checked
Test after each of the following steps that you haven’t already tried:
Step 1
Take all the applicable steps suggested in this support article. That's the starting point for any further effort to solve the problem. Skipping any of those steps may mean that the problem won't be solved.
Note that, as stated in the article, the computer will not sleep if some sharing services are enabled. From the menu bar, select
▹ System Preferences... ▹ Sharing
Turn off all sharing services.
Step 2
Select
▹ System Preferences... ▹ Accessibility ▹ Speakable Items: Off
Step 3
Select
▹ System Preferences... ▹ Bluetooth ▹ Advanced...
and uncheck both boxes marked
Open Bluetooth Setup Assistant at startup if...
Step 4
In the Printers & Scanners preference pane, delete any duplicate printers.
I followed the steps and my MacBook Air slept through the night. Thank you for your help!
Macbook Air waking every minute during sleep - Wake reason: RTC (Alarm)
