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76 Chapter 3 Using Your MacBook
Removing and Replacing the Battery
For instructions on removing and replacing the battery, see “Removing the Battery” on
page 80 and “Replacing the Battery” on page 86.
Note: Dispose of batteries according to your local environmental laws and guidelines.
For more information, see “Disposal and Recycling Information” on page 132.
Charging a Battery
When the power adapter is connected to your computer, the battery recharges
whether the computer is off, on, or in sleep. However, the battery recharges more
quickly if the computer is off or in sleep. When the computer is on, you can monitor
the battery charge level using the Battery status icon in the menu bar.
The battery charge level displayed is based on the amount of power left in the battery
with the applications, peripheral devices, and system settings (display brightness,
Energy Saver settings, and so on) you are currently using. To conserve battery power,
close applications and disconnect peripheral devices not in use, and adjust your Energy
Saver settings (see the next section).