编辑苹果笔记本电脑电池问题解决方案

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摘要

If your Apple laptop battery is healthy but performing erratically, try these methods to track down the problem and fix it.

附加信息

Before you try any of the methods below, [[How to reset the SMC on a Mac|reset your SMC|new_window=true]] (System Management Controller) and see if your problem persists.

== Battery Calibration ==

If you recently installed a new battery in your laptop, you may be experiencing erratic battery behavior because the new battery needs to be calibrated. Battery calibration is a recommended step for all newly installed batteries, but can occasionally smooth out issues with older batteries as well. To calibrate your Apple laptop battery, follow these steps:

# ***Plug the laptop in and charge it to 100%.*** It’s okay to use the laptop during this step.
# ***Keep the laptop plugged in for two more hours.*** Once the laptop hits 100%, keep it plugged in for an additional two hours. You can keep using it during this step as well, just make sure that the power source is ''Power Adapter'' (you can check the power source by clicking the battery icon in the menu bar).
# ***Use your laptop until the battery completely dies.*** Make sure you save your work once it hits 10% or so—it will most likely go into low-power sleep without warning. If you need a quick, low-maintenance way to drain the battery, try streaming a video with the screen brightness all the way up.
# ***Wait two or three more hours for the battery to completely die.*** Apple laptops go into a power-saving sleep when the battery gets low in an attempt to save your work. The goal here is to drain the battery as much as possible, so once the low-power sleep mode kicks in, wait another couple hours for the last of the charge to drain (longer is better).
# ***Plug the laptop back in and let it charge uninterrupted back to 100%.*** It’s okay to use the laptop during this step, but if you can, try to keep the usage light.

== Activity Monitor ==

Activity Monitor is a pre-installed MacOS application that tracks how your computer’s resources are being used. You can use Activity Monitor to investigate which programs are using your laptop’s battery power and how much of it they are using. Follow these steps to open Activity Monitor and have it record energy consumption for a battery cycle:

# ***Open Activity Monitor.*** If you can’t find the application on your system, try pressing the cmd+space keys together, and then typing ''Activity Monitor'' to search for it.
# ***Leave Activity Monitor open until your battery drops to 10%.*** Make sure your laptop is unplugged so the battery usage is being tracked. During this step, use your laptop as you normally do. You can minimize the Activity Monitor window, but don’t close it.
# ***Take a screenshot of the Activity Monitor window on the ''Energy'' tab.*** The different tabs (CPU, Memory, Energy, etc.) are located at the top of the application window. Use the key combination cmd+shift+5 to open the screen grab tool. Share the screenshot with your iFixit Customer Service rep, or anyone else helping you diagnose your battery issues.

中文

[title|苹果笔记本电脑电池问题解决方案]

[summary]如果苹果笔记本电脑的电池状态健康，却时常性能异常，尝试下列方法，追踪并修复此问题。[/summary]

[summary_image|1682750]

在进行下列操作之前，请先尝试[[How to reset the SMC on a Mac|重置 Mac 的 SMC|new_window=true]]（系统控制管理器）并检查问题是否依旧存在。

== 电池校准 ==

如果近期曾为 MacBook 更换新电池，可能会遇到不稳定的电池性能。这是因为新电池需要进行校准才能正常运行。电池校准是新电池安装后的推荐操作，但同时也可以修复旧电池的一些小问题。如要为 MacBook 进行电池校准，请遵循以下步骤：

# ***连接电源，将电池充电至100%***  在此步骤中可以正常使用笔记本电脑。
# ***保持电源连接2小时***  在电池充电至100%后，继续保持电源连接2小时。在此步骤中可以继续使用笔记本电脑，只要确保电源供应来自“电源适配器”（可以点击菜单栏中的电池图标，检查笔记本电脑目前的电源供应）。
# ***使用笔记本电脑，直到电池完全耗尽***  确保在电池电量低于10%时保存正在工作的文件。笔记本电脑有可能会在没有预警的情况下进入睡眠模式。如果要加快耗电速度，可以尝试以最大屏幕亮度播放在线影片。
# ***再等待2至3小时，使电池完全耗尽***  为了保存用户文档，MacBook 会在电池电量低时进入睡眠模式。继续等待2至3小时，可以使 MacBook 保留的最后一部分电量耗尽。时间越长越好。
# ***重新连接电源，让电池充电至100%***  在此步骤中可以使用笔记本电脑，但尽量保持轻度使用。

== 活动监视器 ==

活动监视器是 macOS 中的一个预载应用，可以追踪计算机资源的用量。借用活动监视器，可以查找耗电量最高的应用程序，以及它们使用了多少电能。参照下列步骤，打开活动监视器并记录一个电池循环内的耗电情况：

# ***打开活动监视器***  如果不知道从何处开启，可以按下 command 和 空白键，然后输入“活动监视器”，找到这个应用程序。
# ***保持活动监视器开启，直到电池电量消耗至10%***  确保电源已断开连接，活动监视器开始跟踪耗电情况。在此步骤中，请像平日一样使用笔记本电脑。可以将活动监视器窗口最小化，但不要关闭此应用程序。
# ***切换至“能耗“标签页并截图***  在窗口顶部可以切换不同标签页（CPU、记忆体、能耗、磁碟、网络）。使用快捷键组合 command + shift + 5 开启截图工具。将截图分享给 iFixit 客户服务代表，或任何可以帮助诊断电池问题的人。