Apple估计，您的Apple Watch充满电可提供长达 18 小时的“全天”使用时间(up to 18 hours of “All-Day” usage)。但情况并非总是如此。有几个因素决定了 Apple Watch 的电池续航时间：使用频率、安装的应用程序、通知设置、显示配置等等。
如果您遇到 Apple Watch 的电池耗尽问题，这很可能是因为该设备处理的进程比以前多。在本指南中，我们重点介绍了十个有助于最大限度延长 Apple Watch 电池寿命的节电技巧。
1.降低显示亮度
Apple Watch 的屏幕越亮，电池耗尽的速度就越快。这是因为需要更多的电池电量来为更亮的显示器供电。缩小 Apple Watch 的显示屏可以延长其电池寿命和使用时间。
在 Apple Watch 上打开“设置”应用，选择(Settings)“显示与亮度(Display & Brightness)”，然后点击左侧的阳光图标，将显示亮度降低一级。
不要将亮度降低到难以看清屏幕内容的程度。您还可以通过 iPhone 远程调整 Apple Watch 的亮度。
启动Watch应用程序，转到显示和亮度(Display & Brightness)，然后将滑块向左移动以降低 Apple Watch 的亮度。
2.禁用常亮显示
Apple Watch Series 4及更早版本的显示屏仅在您抬起手腕或按下Digital Crown时才会亮起。对于Series 5和更新版本，可以选择始终保持显示。虽然“永远在线”功能有其优势，但由于显示屏会降低电量，它会导致 Apple Watch 的电池耗尽问题。
检查 Apple Watch 的显示设置（设置(Settings)>显示和亮度(Display & Brightness)>始终开启(Always On)）并关闭“始终开启”。
如果您的Apple Watch已连接到 iPhone，请启动Watch应用程序，转到“我的手表(Watch)”选项卡，选择“显示和亮度(Display & Brightness)” ，点击“始终(Always On)开启”，然后禁用“始终开启”选项。
3.禁用抬腕唤醒
仅在您点击屏幕或按下Digital Crown时唤醒Apple Watch将最大限度地提高电池性能。进入Apple Watch设置(Settings)，点击常规(General)，选择唤醒屏幕(Wake Screen)，然后禁用抬腕(Head)唤醒(Wake on Wrist Raise)。
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4.减少点击唤醒时间
默认情况下，如果您不放下手腕或不采取任何行动，Apple Watch 的显示屏将在 15 秒后熄灭。可以选择将“On Tap”显示超时时间延长至 70 秒，但我们不建议这样做。这会更快地耗尽 Apple Watch 的电池。
要减少Apple Watch上的唤醒超时，请前往“设置”(Settings) > “通用(General)” > “唤醒屏幕(Wake Screen)”，然后将“点按”持续时间设置为“唤醒 15 秒(Wake for 15 Seconds)” 。
您还可以通过Watch(Watch)应用在 iPhone 上进行更改。在“我的手表(Watch)”选项卡中，转到“常规(General)” > “唤醒屏幕(Wake Screen)”，然后在“点按”部分选择“唤醒 15 秒”。(Wake for 15 Seconds)
5.禁用后台应用刷新
后台应用刷新(Background App Refresh)是 watchOS 的一项功能，可让您的Apple Watch 应用(Apple Watch apps)的内容保持更新。尽管有这些好处，但当许多应用程序在后台刷新其内容时，电池耗尽是一个问题。浏览 Apple Watch 的设置并为不需要的应用禁用后台应用刷新(Background App Refresh)。
打开“设置”(Settings)应用，选择“常规(General)” ，选择“后台应用刷新(Background App Refresh)”并关闭不重要应用的后台刷新。
6.修改Siri设置
如果Siri(Siri)一直在听语音命令，那么在Apple Watch上使用Siri会比平时更快地耗尽设备的电池电量。禁用虚拟助手的语音命令以充分利用Apple Watch的电池。
- 打开“设置”(Settings)应用，选择Siri，然后关闭“Hey Siri”的收听。(Listen for “Hey Siri.”)
更好(Better)的是，如果您根本不使用虚拟助手，请关闭Siri 。有关说明，请参阅步骤 2。
- 关闭Raise to Speak和Press Digital Crown。
这将立即在屏幕上显示确认提示。
- 选择关闭 Siri(Turn Off Siri)。
7.禁用来自不需要的应用程序(Apps)的通知警报
与 iPhone 配对时，iOS 会将受支持应用程序的通知发送到您的Apple Watch。让您的Apple Watch通知您有新消息和提醒非常好。另一方面，不必要的通知(unnecessary notifications)可能会导致严重的Apple Watch电池消耗问题。
浏览向您的Apple Watch发送通知的应用程序列表，并禁用不需要的应用程序的警报(disable alerts for unneeded applications)。
打开 iOS Watch 应用程序，转到通知(Notifications)，滚动到“镜像 iPhone 警报”部分，然后关闭不值得将通知转发到Apple Watch的应用程序。
8.禁用健身(Fitness)和健康监测(Health Monitoring)功能
Apple Watch附带了一些健身和健康功能(health and fitness features)，以及跟踪心率、血氧、卡路里等的健身功能。如果您购买Apple Watch是为了美观或只是为了显示时间，禁用这些功能将减少电池消耗。
- 在 iPhone 上打开Watch应用并选择隐私(Privacy)。
- 关闭心率(Heart Rate)和健身监测(Fitness Monitoring)。
- 滚动到页面底部并禁用血氧测量(Blood Oxygen Measurements)。
9.启用省电模式
在省电(Power Saving)模式下，watchOS 将在锻炼活动期间关闭不需要的功能，以延长 Apple Watch 的电池寿命。
- 打开Apple Watch上的(Apple Watch)“设置”(Settings)应用，滚动到底部，然后选择“锻炼(Workout)” 。
- 切换到省电模式(Power Saving Mode)。
10. 更新你的 Apple Watch
watchOS 更新附带错误修复和安全增强功能，可以减少电池消耗并解决其他问题。将Apple Watch连接到WiFi网络并按照以下步骤操作。
打开设置(Settings)应用程序，选择常规(General)，选择软件更新(Software Update)。
您还可以从 iPhone 远程更新Apple Watch。打开Watch应用程序，选择General，选择Software Update，然后安装页面上可用的任何 watchOS 更新。
如果在实施这些更改后电池耗尽问题仍然存在，则您的Apple Watch的电池可能随着电池的化学老化而达到其使用寿命。您使用和充电的电池越多，它就会变得越弱。因此，如果您的Apple Watch充满电后只能使用 2-5 小时，请前往附近的Genius Bar 天才吧(Genius Bar)或联系 Apple 支持(contact Apple Support)以更换电池。
Apple Watch Battery Drain Issues: 10 Best Fixes
Apple estimateѕ that a full charge оf your Apple Watch should provide up to 18 hours of “All-Day” usage. But that’s not always the case. Several factors determine how long your Apple Watch’s battery lasts: usage frequency, apps installed, notification settings, display configurations, and so on.
If you’re experiencing Apple Watch’s battery drain issues, that’s most likely because the device is handling more processes than it used to. In this guide, we highlight ten power-saving tips that’ll help maximize your Apple Watch’s battery life.
1. Reduce Display Brightness
The brighter your Apple Watch’s screen, the quicker the battery dies. That’s because more battery juice is required to power a brighter display. Reducing your Apple Watch’s display can extend its battery life and usage hours.
Open the Settings app on the Apple Watch, select Display & Brightness, and tap the sunlight icon on the left to reduce the display brightness by one level.
Don’t reduce the brightness to a point where you struggle to see the screen’s content. You can also remotely adjust your Apple Watch’s brightness from your iPhone.
Launch the Watch app, go to Display & Brightness, and move the slider to the left to reduce your Apple Watch’s brightness.
2. Disable Always-On Display
The display of the Apple Watch Series 4 and older editions only come on when you raise your wrist or press the Digital Crown. For Series 5 and newer editions, there’s an option to keep the display on at all times. While the “Always-On” feature comes with its benefits, it’ll cause Apple Watch’s battery drain issues due to the display drawing down the power.
Check your Apple Watch’s display settings (Settings > Display & Brightness > Always On) and toggle off “Always On.”
If your Apple Watch is connected to an iPhone, launch the Watch app, go to the “My Watch” tab, select Display & Brightness, tap Always On, and disable the “Always On” option.
3. Disable Wake On Wrist Raise
Waking your Apple Watch only when you tap the screen or press the Digital Crown will maximize battery performance. Head into the Apple Watch Settings, tap General, select Wake Screen, and disable Wake on Wrist Raise.
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4. Reduce On Tap Wake Time
By default, your Apple Watch’s display will go off after 15 seconds if you don’t lower your wrist or take any action. There’s an option to extend the “On Tap” display timeout to 70 seconds, but we don’t advise doing such. That’ll drain your Apple Watch’s battery quicker.
To reduce the wake timeout on your Apple Watch, go to Settings > General > Wake Screen and set the “On Tap” duration to Wake for 15 Seconds.
You can also make the change on your iPhone via the Watch app. In the “My Watch” tab, go to General > Wake Screen and select Wake for 15 Seconds in the “On Tap” section.
5. Disable Background App Refresh
Background App Refresh is a watchOS feature that keeps the content of your Apple Watch apps updated. Despite the benefits, battery drainage is an issue when many apps refresh their content in the background. Go through your Apple Watch’s settings and disable Background App Refresh for unneeded apps.
Open the Settings app, select General, select Background App Refresh and toggle off background refresh for unimportant apps.
6. Modify Siri Settings
Using Siri with your Apple Watch can drain the device’s battery faster than usual if Siri always listens for voice commands. Disable the virtual assistant’s voice command to get the best out of your Apple Watch’s battery.
- Open the Settings app, select Siri, and toggle off Listen for “Hey Siri.”
Better yet, turn off Siri if you don’t use the virtual assistant at all. See Step 2 for instructions.
- Turn off both Raise to Speak and Press Digital Crown.
That’ll immediately display a confirmation prompt on the screen.
- Select Turn Off Siri.
7. Disable Notification Alerts from Unneeded Apps
When paired with an iPhone, iOS routes notifications from supported apps to your Apple Watch. It’s good to have your Apple Watch notify you of new messages and alerts. On the flip side, unnecessary notifications can cause significant Apple Watch battery drain issues.
Go through the list of apps sending notifications to your Apple Watch and disable alerts for unneeded applications.
Open the iOS Watch app, go to Notifications, scroll to the “Mirror iPhone Alerts” section and toggle off apps whose notifications aren’t worth forwarding to your Apple Watch.
8. Disable Fitness and Health Monitoring Features
Apple Watch ships with a handful of fitness and health and fitness features that track heart rate, blood oxygen, calories, etc. If you bought your Apple Watch for the aesthetics or just to tell time, disabling these features will reduce battery drain.
- Open the Watch app on your iPhone and select Privacy.
- Toggle off both Heart Rate and Fitness Monitoring.
- Scroll to the bottom of the page and disable Blood Oxygen Measurements.
9. Enable Power Saving Mode
In Power Saving mode, watchOS will turn off unneeded features during workout activities to extend your Apple Watch’s battery life.
- Open the Settings app on your Apple Watch, scroll to the bottom, and select Workout.
- Toggle on Power Saving Mode.
10. Update Your Apple Watch
watchOS updates ship with bug fixes and security enhancements that can reduce battery drainage and resolve other issues. Connect your Apple Watch to a WiFi network and follow the steps below.
Open the Settings app, select General, select Software Update.
You can also remotely update your Apple Watch from your iPhone. Open the Watch app, select General, select Software Update, and install any watchOS update available on the page.
If the battery drainage issue persists after implementing these changes, your Apple Watch’s battery has probably hit its lifespan as the battery chemically ages. The more you use and charge the battery, the weaker it becomes. So if your Apple Watch barely lasts 2-5 hours on a full charge, visit a nearby Genius Bar or contact Apple Support to get the battery replaced.
