All MacBook, MacBook Pro and MacBook Air portable computers use batteries with built-in processor, the processor is designed to maximize battery performance. One function of the battery is internal to the processor to estimate the remaining battery life by analyzing the current rate and state of charge of the battery power consumption.
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In order for the remaining battery capacity to make accurate predictions, the processor and the battery needs to be calibrated procedure. Calibration routine can help processor evaluates the performance of the battery current, and accurate prediction of remaining battery capacity.
So how do you calibrate MacBook battery, battery calibration MACBOOK how to do it? The following small series together with macdown learn it.
When the battery calibration
When you use an older MacBook or MacBook Pro, you might forget all the information about the calibration process. If you forget to do the calibration procedure, it will not harm the battery. This means you can not only get the best performance from the battery.
However, after calibration of the battery, the remaining time indicator will be more accurate. Over time, as the charge and discharge of the battery, the performance will change. Appropriate time between two calibrations depends on whether you use Mac frequency. The process does not cause any harm, so the battery several times a year calibration is safe.
How to calibrate the older MacBook, MacBook Pro or MacBook Air Battery
1, first for Mac is fully charged. Do not press the battery menu. Instead, the power adapter and to insert Mac charging until the charging indicator light or sounds at the jack adapter light turns green, and the battery indication on-screen menu is fully charged.
2, after the battery is fully charged, the AC adapter continue to run Mac two hours. Just plug the power adapter and you are using the AC power supply instead of the battery Mac, you can use Mac during this period.
3, after two hours from the Mac disconnect the AC power adapter. Do not close the Mac. It can be converted without difficulty into the battery power. Continue to use the battery to run Mac, until the battery is less than the on-screen warning dialog box appears. While waiting for the low battery warning, you can continue to use Mac.
4、当您看到屏幕上的电池电量不足警告时，请保存所有进行中的工作，并继续使用Mac，直到由于电池电量极低而自动进入睡眠状态。看到电池电量不足警告后，请不要执行任何重要工作，因为Mac会很快进入睡眠状态，并且没有其他警告。Mac进入睡眠状态后，将其关闭。
5、等待至少五个小时（更长的时间即可）后，连接电源适配器并为Mac充满电。电池现已完全校准，内部电池处理器将提供准确的电池剩余时间估算值。
优化电池使用量的提示
有很多方法可以减少Mac上的电池使用量。有些是显而易见的，例如调暗显示器的亮度。显示屏越亮，它消耗的能量就越多。您可以使用显示首选项窗格来调整显示亮度。
其他方式不太明显，例如在不使用无线网络连接时关闭Mac的Wi-Fi功能。即使您没有主动连接到无线网络，Mac仍在花精力寻找可用的网络。您可以从Wi-Fi菜单栏图标或“网络”偏好设置面板关闭Wi-Fi功能。
断开外围设备的连接，包括所有连接的存储卡。即使您不积极使用设备，Mac也会检查各个端口以查找设备可能需要的任何必需服务。Mac还通过其许多端口供电，因此，例如，断开USB供电的外部驱动器的连接可以延长电池时间。