尽管 Chromebook 具有令人难以置信的电池寿命(incredible battery life)，但Chrome操作系统缺乏有助于延长电池寿命的内置机制（例如省电模式、低功耗模式等）。尽管如此，还是有一些方法可以调整您的Chromebook功能和设置，以最大限度地减少电池使用量。
在本文中，我们将介绍 7 种节省Chromebook电池电量的方法。您还将了解如何检查Chromebook的电池健康状况以及其他有用的电池保养提示。
1.降低显示亮度(Display Brightness)和键盘背光(Keyboard Backlight)
屏幕亮度过高是小工具和其他电池供电设备电池耗尽和过热的(overheating in gadgets)主要原因之一。要延长 Chromebook 的电池寿命，请将显示屏亮度保持在屏幕内容可见的最低水平。
按亮度降低(Brightness Down)键可降低 Chromebook 的显示屏亮度。或者，单击通知区域并将亮度滑块向左移动。
关闭键盘背光，尤其是在室外或明亮的房间内，也可以最大限度地减少电池消耗。按Alt + Brightness Down键可降低键盘背光的亮度。
2.关闭未使用的浏览器标签
您在Chrome(Chrome)和其他浏览器上访问的网站会占用您Chrome book 的CPU资源、内存占用和电池寿命，即使标签页未打开也是如此。启动浏览器并关闭不再需要的网页或标签。如果您不想丢失标签，您可以简单地为网页添加书签。
要在Chrome(Chrome)和Mozilla Firefox上为网页添加书签，请按Ctrl + D或选择地址栏中的星形图标并选择(star icon)完成(Done)。
3.关闭不需要的应用程序
同时打开太多应用程序会比平时更快地耗尽 Chromebook 的电池电量。关闭您不再使用或不再需要的应用程序；这样做会大大减少电池消耗。点击(Tap)并按住（或右键单击）Chromebook书架(Shelf)上的应用，然后在上下文菜单中选择关闭。(Close)
或者，按Show windows键并向上滑动应用程序或单击x 图标(x icon)。您还可以从Android 偏好设置(Android Preferences)菜单中强制关闭应用程序。打开“设置”(Settings)应用并转到“应用(Apps)” > “Google Play 商店”(Google Play Store)，然后单击“管理 Android 偏好(Manage Android preferences)设置” 。
Chrome OS将启动设置(Settings)应用的新界面；选择应用程序和通知(Apps & notifications)，选择查看所有应用程序(See all apps)，然后选择要强制关闭的应用程序。
选择强制停止(Force Stop)按钮并在确认提示中选择确定(OK)以关闭应用程序。
4.禁用蓝牙
当您始终启用蓝牙(Bluetooth)时，您的Chromebook会主动扫描附近的蓝牙(Bluetooth)设备。这将对您设备的电池寿命造成（负面）影响——尽管其影响非常小。因此(Hence)，除非您需要，否则请努力始终禁用蓝牙。(Bluetooth)
点击屏幕左下角的电池图标，然后点击(Battery icon)蓝牙图标(Bluetooth icon)将其关闭。或者，前往设置(Settings)>蓝牙(Bluetooth)并关闭蓝牙(Bluetooth)。
5.不使用时关闭Wi-Fi
当您未连接到无线网络时，启用Wi-Fi会导致您的Chromebook不断漫游到可用网络。这种无休止的活动也会耗尽您设备的电池电量。要节省Chromebook的电池电量，请养成在未连接到无线网络时关闭Wi-Fi的习惯。(Wi-Fi)
打开设置(Settings)应用程序，选择网络(Network)，然后关闭Wi-Fi。更好(Better)的是，点击通知区域并点击 Wi-Fi 图标。
6. 拔下 USB 配件
某些外部设备（例如智能手机、键盘、鼠标等）从 Chromebook 的USB端口获取电力。要节省电池电量，请拔下USB供电的配件或您不使用的设备。
7. 检查盖子管理设置
转到Chrome 操作系统(Chrome OS)设置并确保您的 Chromebook 配置为在合上盖子时进入睡眠状态。否则，屏幕会一直亮着，并在后台耗尽 Chromebook 的电池。
前往 Chromebook 的电源管理菜单（设置(Settings)>设备(Device)>电源(Power)）并打开“合上盖子时睡眠”选项。(Sleep)此外，确保“充电时”和“电池时”的空闲选项设置为“睡眠(Sleep)”或“关闭显示”(Turn off display)。
虽然这两个选项都有助于最大限度地减少电池使用量，但将 Chromebook 设置为在空闲时进入睡眠状态将比仅关闭显示器节省更多的电池寿命。(save more battery life)
您的 Chromebook电池(Battery)有多强(Strong)？
如果您的 Chromebook 的电池在执行上述节电提示后仍然出现异常活动，则可能是电池损坏（或降级）的迹象。请按照以下步骤使用 Crosh（Chrome 操作系统的 Command Shell 环境）检查 Chromebook 的电池健康状况、放电率和其他与电池相关的指标。
1.从Chromebook桌面或任何应用程序中按Control + Alt + T以启动(T)Crosh。这将打开一个新的Chrome选项卡，您可以在其中访问Chrome OS shell。
2. 在终端中输入或粘贴battery_test并按Enter。
3. 注意“电池健康”数字。
通常，80% 的评级（或更高）表示电池健康。如果电池电量低于 80%，您可能需要更换 Chromebook 的电池。请与您的 Chromebook 制造商联系(Contact your Chromebook manufacturer)以检查您设备的电池。
确认您的 Chromebook 电池是否处于良好状态的另一种方法是检查其循环计数 - 您在完全充电之前清空 Chromebook 电池的次数。在 Chrome OS shell 中键入或粘贴电池固件信息，然后按(battery_firmware info)Enter。
记(Take)下“循环(Cycle)计数”行中的数字。
典型的锂电池在达到其使用寿命之前，即在其容量开始下降之前，将需要大约 300-500 次充电循环。
Chromebook 电池保养提示
健康的电池就是健康的Chromebook。除了上述建议之外，以下做法将帮助您充分利用Chromebook的电池。
1.使用正品充电配件(1. Use Authentic Charging Accessories)
使用非品牌或假冒配件为您的 Chromebook 充电会导致电池消耗更快。更糟糕的是，从长远来看，仿冒充电配件可能会损坏 Chromebook 的电池和其他硬件组件。
确保您只使用开箱即用的Chromebook随附的充电配件（适配器、数据线等） 。如果您丢失了充电器，请从授权商店购买兼容的替代品。同样(Likewise)，请确保不要将Chromebook插入有故障的电源插座。这可能会损坏您的充电配件和电池；使用电涌保护器(surge protector)，如果你有的话。
2. 将您的 Chromebook 保持在凉爽的环境中(2. Keep Your Chromebook in Cool Environments)
研究表明，过热的设备比储存在凉爽大气条件下的设备更快地失去电池电量。(overheated devices lose battery charge quicker)避免(Avoid)将 Chromebook 长时间放置在炎热的环境中，例如阳光直射、热车或靠近暖气通风口。这样做可以加快电池放电速度，即使您不使用 Chromebook。
节省您的 Chromebook 电池
通常，在Chromebook(Chromebook)上节省电池主要围绕丢弃您可以不用的东西（应用程序、外部配件、键盘背光、浏览器标签等）。如果您仍然遇到电池耗尽的问题，请重新启动您的Chromebook或将其更新到最新的 Chrome 操作系统（转到设置(Settings)>关于 Chrome 操作系统(About Chrome OS)>检查更新(Check for Updates)）。
此外，在不使用时锁定 Chromebook 是一种非常省电的做法。合上盖子或按住电源按钮并选择锁定(Lock)。更好(Better)的是，如果您长时间不使用它，请将其关闭。
如果所有故障排除技术都失败并且电池耗尽问题仍然存在，则对 Chromebook 进行电源清洗（阅读：恢复出厂设置）(power-washing (read: factory-resetting) your Chromebook)可能会解决问题。不过，在此之前，请联系您的Chromebook制造商或访问附近的服务中心。
How to Save Battery on Chromebook: Top 7 Tips
Although Chromebooks have incredible battery life, the Chrome operating system lacks built-in mechanisms (e.g. battery saver, low power mode, etc.) that help to prolong battery life. Nonetheless, there are ways to tweak your Chromebook features and settings to minimize battery usage.
In this article we’ll cover 7 ways to save battery on your Chromebook. You’ll also learn how to check your Chromebook’s battery health and other useful battery care tips.
1. Lower Display Brightness and Keyboard Backlight
Excessively high screen brightness is one of the leading causes of battery drainage and overheating in gadgets and other battery-powered devices. To extend your Chromebook’s battery life, keep the display brightness at the lowest level where the screen content remains visible.
Press the Brightness Down key to reduce your Chromebook’s display light. Or, click the notification area and move the brightness slider to the left.
Turning off the keyboard backlight, particularly outdoors or in lit rooms, will also minimize battery consumption. Press Alt + Brightness Down key to turn down the brightness of the keyboard backlight.
2. Close Unused Browser Tabs
Websites that you visit on Chrome and other browsers use your Chromebook’s CPU resource, memory footprint, and battery life—even when the tabs aren’t open. Launch your browser and close web pages or tabs you no longer need. If you don’t want to lose the tab, you could simply bookmark the web page.
To bookmark a webpage on Chrome and Mozilla Firefox, press Ctrl + D or select the star icon in the address bar and select Done.
3. Close Unneeded Apps
Having too many apps opened simultaneously will drain your Chromebook’s battery faster than usual. Close apps you no longer use or need; doing so will reduce battery consumption by a great deal. Tap and hold (or right-click) an app on your Chromebook’s Shelf and select Close on the context menu.
Alternately, press the Show windows key and swipe up the app or click the x icon. You can also force-close the app from the Android Preferences menu. Open the Settings app and go to Apps > Google Play Store and click Manage Android preferences.
Chrome OS will launch a new interface of the Settings app; select Apps & notifications, select See all apps and choose the app you want to force close.
Select the Force Stop button and select OK on the confirmation prompt to close the app.
4. Disable Bluetooth
When you leave Bluetooth enabled all the time, your Chromebook will actively scan for nearby Bluetooth devices. This will take a (negative) toll on your device’s battery life—although its effect is quite minimal. Hence, endeavor to always keep Bluetooth disable unless you need it.
Tap the Battery icon at the bottom-left corner of the screen and tap the Bluetooth icon to turn it off. Alternatively, head to Settings > Bluetooth and toggle off Bluetooth.
5. Turn Off Wi-Fi When Not In Use
When you aren’t connected to a wireless network, leaving Wi-Fi enabled will cause your Chromebook to constantly roam for available networks. This unending activity also drains your device’s battery. To save battery on your Chromebook, make it a habit to turn off Wi-Fi when you aren’t connected to a wireless network.
Open the Settings app, select Network, and toggle off Wi-Fi. Better yet, tap the notification area and tap the Wi-Fi icon.
6. Unplug USB Accessories
Some external devices (e.g. smartphones, keyboard, mouse, etc.) draw power from your Chromebook’s USB ports. To save battery, unplug USB-powered accessories or devices you aren’t using.
7. Check Lid Management Settings
Go to the Chrome OS settings and make sure your Chromebook is configured to sleep when you close the lid. Otherwise, the screen will stay on and deplete your Chromebook’s battery in the background.
Head to your Chromebook’s power management menu (Settings > Device > Power) and toggle on the “Sleep when cover is closed” option. Additionally, ensure the idle options for “While charging” and “While on battery” are set to either Sleep or Turn off display.
While both options help to minimize battery usage, setting your Chromebook to go to sleep when idle will save more battery life than turning off only the display.
How Strong Is Your Chromebook’s Battery?
If your Chromebook’s battery continues to experience unusual activity after performing the battery-saving tips mentioned above, that could be a sign of a damaged (or degrading) battery. Follow the steps below to use Crosh—Chrome OS’ Command Shell environment—to check your Chromebook’s battery health, discharge rate, and other battery-related metrics.
1. Press Control + Alt + T from the Chromebook desktop or within any app to launch Crosh. That’ll open a new Chrome tab where you can access the Chrome OS shell.
2. Type or paste battery_test in the terminal and press Enter.
3. Take note of the “Battery health” figure.
Generally, an 80% rating (or above) indicates a healthy battery. If the battery health is below 80%, you may need to replace Chromebook’s battery. Contact your Chromebook manufacturer to have your device’s battery examined.
Another way to confirm if your Chromebook’s battery is in good condition is to check its cycle count—the number of times you empty your Chromebook’s battery before fully recharging it. Type or paste battery_firmware info in the Chrome OS shell and press Enter.
Take note of the figure in the “Cycle count” row.
Typical Lithium-based batteries will take about 300-500 charge cycles before hitting their lifespan, i.e., before their capacity begins to drop.
Chromebook Battery Care Tips
A healthy battery is a healthy Chromebook. In addition to the above-mentioned recommendations, the following practices will help you get the best out of your Chromebook’s battery.
1. Use Authentic Charging Accessories
Charging your Chromebook with off-brand or counterfeit accessories will cause the battery to drain faster. Even worse, knockoff charging accessories could damage your Chromebook’s battery and other hardware components in the long run.
Ensure you only use the charging accessories (adapter, cable, etc.) that shipped with your Chromebook out-of-the-box. If you lose your charger, buy a compatible replacement from authorized outlets. Likewise, ensure you don’t plug your Chromebook into a faulty power outlet. That could damage your charging accessories and battery; use a surge protector, if you have one.
2. Keep Your Chromebook in Cool Environments
Research shows that overheated devices lose battery charge quicker than devices stored in cool atmospheric conditions. Avoid keeping your Chromebook in a hot environment—e.g. direct sunlight, hot cars, or near heating vents—for prolonged periods. Doing so results in quicker battery discharge even when you aren’t using your Chromebook.
Save Your Chromebook Battery
Generally, saving battery on Chromebook revolves around discarding things (apps, external accessories, keyboard backlight, browser tabs, etc.) that you can do without. If you still encounter battery drainage issues, restart your Chromebook or update it to the latest Chrome OS (go to Settings > About Chrome OS > Check for Updates).
Additionally, locking your Chromebook when not in use is a great battery-saving practice. Close the lid or hold the power button and select Lock. Better yet, turn it off if you won’t be using it for a very long period.
If all troubleshooting techniques fail and the battery drain issue continues, power-washing (read: factory-resetting) your Chromebook may fix the problem. Before you do that, however, contact your Chromebook manufacturer or visit a nearby service center.
