Apple MB986LL User Guide - Page 77
Using Your Battery, Understanding Battery Conservation Tips
UPC - 885909295722
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Using Your Battery When the external power adapter is not connected, your computer draws power from its battery. The length of time that you can run your MacBook Pro varies, depending on the applications you use and the external devices connected to your MacBook Pro. Turning off features such as AirPort Extreme or Bluetooth wireless technology can help conserve battery charge. For more information about using your battery, see "Understanding Battery Conservation Tips" on page 79. You can determine the charge left in your battery by looking at the battery level indicator lights on the battery itself. Press the button next to the lights and the lights glow to show how much charge is left in the battery. The indicator lights remain lit for a few seconds after you press the button. You can check the charge with the battery in or out of your MacBook Pro. If your battery runs low while you are working, attach your power adapter and let the battery recharge. To replace a low battery with a charged one when you are not connected to a power adapter, it's best to shut down your computer. If you put your MacBook Pro to sleep to replace the battery, wait until the sleep indicator light is pulsating before removing the battery. Although your computer will shut down when you remove the battery, you won't lose any data. Important: If only one flashing light is on, very little charge is left. If no lights are visible, the battery is completely drained and the computer will not start up unless the power adapter is connected. Plug in the power adapter to let the battery recharge, or replace the drained battery with a fully charged battery (see page 78). Chapter 3 Using Your MacBook Pro 77