Any portable devices running on battery power, it requires periodic calibration. Other special action by the user, in addition to temperature conditions operation, lithium-ion batteries do not require.
In some laptops have a function "calibration", sometimes in the form of a menu item in the BIOS, sometimes as a separate program, sometimes just as mentioned in the documentation. However, many manufacturers require that we perform this procedure. In fact, it is necessary only to correct errors that accumulate between the battery and digital circuit control, and represents a full cycle "charge - discharge." Without this, the efficiency of the battery will gradually decrease, and the charge level is displayed on the screen - do not correspond to reality.
If you regularly use your laptop away from the wall and are working on the battery, then it is sufficient to calibrate only once every two to three months. In the case of continuous operation of the network, Apple recommends this procedure at least once every three to four weeks. Let us describe this process for different devices and Apple.
Calibrating the battery MacBook Air and MacBook Pro
To begin the battery Apple laptop, fully charge. Know that the battery can be prepared by the screen display or lights on the power adapter.
Then leave the computer alone for about 2 hours. To work for him, of course, possible, but only with a connected power adapter. After this time, disconnect the charger, and continue to use your MacBook, while also trying to get as many of its processes for the fastest discharge.
When the computer will warn you about low battery, save all the data, but do not turn it off. After a while the machine itself will go into sleep mode. Keep this state for five hours or more, for a maximum discharge of the battery.
After you fully charge a laptop battery can be considered calibrated.
Note: When the computer goes into sleep mode, the reserve battery is about 3%. It is therefore very important to wait the moment when the "end" and the sleep mode in order to fully discharge the battery.
Calibrating the battery PowerBook and iBook
Here are instructions for calibration in an abbreviated form for devices that are no longer manufactured, but still operated by some users.
- Charge your laptop battery to 100%.
- Discharge her to a state that the computer automatically went to sleep.
- The calibration process actually begins only now. Reconnect the adapter and charge the battery to the limit.
- Finally, the last time discharge the battery, and do it as quickly as possible, having loaded the computer processes to the limit.
Note: Do not store the battery of the MacBook completely discharged for a long time. This adversely affects its performance.
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