The best thing to do is to keep your battery charged. You will get a notice when your battery is low, plug it in and charge it. We are Braille Bible printers, http://biblesfortheblind.org Keith Reedy keithreedy@xxxxxxxxxxxx On Sep 11, 2014, at 10:50 AM, adrian <adrianleong@xxxxxxxxxxxxxx> wrote: > every time my batery goes completely flat i doo not hear the start up sound > when i restart my mack book air. is there a specific setting i need to change > in the system prefferences?of the mack > > ```Sent from my iPad> >> Click on the link below to go to our homepage. >> http://www.icanworkthisthing.com >> >> Manage your subscription by using the web interface on the link below. >> //www.freelists.org/list/macvoiceover >> >> Users can subscribe to this list by sending email to >> macvoiceover-request@xxxxxxxxxxxxx >> with 'subscribe' in the Subject field OR by logging into the Web >> interface at //www.freelists.org/list/macvoiceover >> > > Click on the link below to go to our homepage. > http://www.icanworkthisthing.com > > Manage your subscription by using the web interface on the link below. > //www.freelists.org/list/macvoiceover > > Users can subscribe to this list by sending email to > macvoiceover-request@xxxxxxxxxxxxx > with 'subscribe' in the Subject field OR by logging into the Web > interface at //www.freelists.org/list/macvoiceover >