笔记本电脑已经变得非常节能，但在很多情况下，您需要尽可能延长计算机的电池寿命，即使这意味着做出一些牺牲。
如果您需要延长您的 Windows 11 PC 电池寿命，请尝试这些技巧中的一个（或多个）以优化您的电池使用。
改变你的电源模式
Microsoft Windows 11有几个称为“电源模式(Power Modes)”的预设，您可以手动在它们之间切换以更改您的计算机体验的电池消耗量。要更改这些电源设置：
- 打开开始菜单(Start Menu)并打开设置(Settings)。
- 选择系统。
- 在系统(System)下，选择电源(Select Power)和电池(Battery)。
- 在Power Mode 下(Power Mode)，选择最适合您需要的一种。
共有三个电源选项：最佳电源效率、平衡(Balanced)和最佳性能(Best Performance)。
尝试从当前的电源模式下移一级以延长电池寿命。如果您切换到最佳(Best)电源效率，在笔记本电脑上执行某些操作时可能会遇到一点延迟，但您应该会看到电池寿命显着增加。Windows 11中仍然存在旧的电源计划，但电源模式(Power Modes)更易于使用，并且在我们的经验中同样有效。
打开省电模式(Turn Battery Saver)以管理后台活动(Manage Background Activity)
除了电源模式外，该操作系统还具有诸如激进的省电(Battery Saver)模式等新功能。省电模式会禁用(Battery Saver)Windows 11中的一组不同功能，这些功能对您来说几乎是不可见的，但会消耗大量电量。其中包括电子邮件和日历同步、实时磁贴更新和后台应用活动。
转到Start > Settings > System > Power和电池(Battery)。
在这里，要么选择立即开启省电模式(Battery Saver)，要么将其设置为在电池百分比低于指定水平时自动开启。
调低显示亮度
我们笔记本电脑屏幕上的背光灯是整个计算机中最大的耗电设备之一。只需调低笔记本电脑的屏幕亮度，即可显着延长电池使用时间。
调整Windows 11(Windows 11)笔记本电脑亮度的主要方法有两种。第一种是使用任务栏(Taskbar)最右侧通知区域中的设置快捷方式。左键单击(Left-click)通知区域，然后使用鼠标指针向左拖动亮度滑块可降低亮度，或向右拖动可提高亮度。
第二种方法是使用笔记本电脑的专用亮度调节按钮。通常，两个功能键（例如，F11和F12）兼作亮度控制。
关闭 HDR
如果您有幸拥有支持HDR（高动态范围）的笔记本电脑，则可以通过关闭(High Dynamic Range)HDR来节省一些电池电量。HDR允许屏幕（显示HDR内容）超过标准内容的最大亮度。这使得一些真正令人瞠目结舌的视觉效果成为可能，但更高的亮度等于更多的功耗，因此最好将其关闭以节省电量。
在Windows 11(Windows 11)中打开或关闭HDR的最快方法是使用Windows Key + Alt + B键盘快捷键。您也可以在显示设置中切换它，但快捷方式更快并且可以修改相同的设置。
欠压您的计算机
您可能听说过“超频”，即计算机组件超出其出厂限制。如果您希望笔记本电脑的电池寿命更长，您绝对不应该这样做，但您可以尝试“降低”笔记本电脑的电压(undervolting)。
Undervolting 需要自己的专门指南，因此我们不会尝试在此处向您展示如何操作。网络上有很多很棒的指南，尤其是在YouTube 上(YouTube)。相反，我们将解释它如何提供帮助。
每个CPU和GPU都有正常工作所需的标准电压。这些组件的瓦数等于电压乘以安培数。如果降低电压，则会降低瓦数。更少的瓦数意味着更长的电池寿命，您将拥有一台更凉爽、更安静的笔记本电脑来启动！
欠压是在BIOS中或通过使用Throttlestop之类的应用程序完成的。降低CPU的电压是无害的，但如果降低太多，在某些情况下会引入不稳定或阻止计算机启动。这很容易通过执行BIOS 或 UEFI 设置重置(BIOS, or UEFI settings reset)来纠正；只需查看手册了解详细信息。
关闭无线技术
如果您不需要蓝牙(Bluetooth)、Wi-Fi或蜂窝连接，请在(Wi-Fi)Windows 11中关闭这些功能以节省电池电量。您可以通过单击通知区域然后在弹出的面板中切换它们来单独关闭每个无线功能。大多数笔记本电脑还具有键盘快捷键，可让您在不使用 Windows 控件的情况下打开和关闭这些功能。
如果您想一次关闭所有无线功能，请使用飞行模式(Airplane Mode)。通过切换同一面板中的飞行模式按钮，您可以切换(Airplane Mode)Wi-Fi和蓝牙(Bluetooth)，或者使用键盘快捷键（如果您的笔记本电脑有键盘快捷键）。
关闭照明功能
许多面向游戏的笔记本电脑具有漂亮的RGB照明功能，通常至少包括键盘按键下方的动画照明；即使是非游戏笔记本电脑也经常配备背光键盘，以便那些需要在黑暗中打字的人更容易。
尽管RGB照明的功耗可能很小，但并非微不足道。要么关掉它，要么把它关掉，只要你能忍受在黑暗中打字。
关闭后台应用程序(Background Apps)或浏览器选项卡(Browser Tabs)
(Battery Saver)如上所述，省电模式会关闭各种消耗电力的后台进程，但您也可以手动关闭可能会耗尽您的果汁的后台应用程序。想想(Think)诸如Steam在后台下载游戏之类的应用程序或您打开的所有那些额外的浏览器选项卡。
关闭(Close)您目前不需要的任何应用程序，这应该会显着降低您的整体功耗。您还可以检查Windows 任务管理器(Windows Task Manager)是否有使用大量资源的应用程序，如果不需要它们，请关闭它们。
降低显示器刷新率(Monitor Refresh Rate)和分辨率(Resolution)
现在，许多笔记本电脑都配备了刷新率极高的高分辨率显示器。这带来了美妙的用户体验，但这些功能需要电源！如果您希望笔记本电脑运行更长时间，请降低分辨率、刷新率或两者兼而有之。
- 要更改分辨率，请右键单击桌面(Desktop)并选择显示设置(Display Settings)。
- 在Display Resolution下，从下拉菜单中选择一个较低的值。请务必选择与屏幕推荐分辨率具有相同纵横比的分辨率。这将防止图像失真。通过为您的显示器选择较低的分辨率，图像会显得不那么清晰，并且越低越柔和。因此，请选择最适合您需求的较低分辨率。
- 要降低刷新率，请从更改分辨率的显示(Display)窗口中选择高级显示。(Advanced Display)
- 然后在选择(Choose)刷新率下，从下拉菜单中选择较低的刷新率。60Hz 对于工作或娱乐来说是一个很好的通用刷新率，但在某些提供 48hz、40Hz、30Hz 甚至更低刷新率选项的笔记本电脑上，你甚至可以低于此值。这会使运动变得不那么流畅，但如果你在做办公室工作或看电影，这是一个很好的折衷办法，可以延长电池的使用寿命。
在某些带有VRR（可变刷新率(Refresh Rate)）显示屏的笔记本电脑上，您还会看到“动态(Dynamic)分辨率”作为分辨率选项之一。这是另一种节省电池电量的好方法，Windows将自动调整刷新率以匹配屏幕上的内容。这意味着您始终可以获得视频播放等最佳刷新率，但在某些笔记本电脑上，这可能会导致某些用户出现明显的闪烁。
使用休眠(Use Hibernation)代替睡眠模式(Sleep Mode)（或(Or Turn)关闭笔记本(Laptop Off)电脑）
当您通过按电源按钮使笔记本电脑进入睡眠状态时，它仍然会消耗少量电池电量。Hibernate不使用任何电源，因为它会在关闭之前将 RAM 内容保存到磁盘。如果您不关心保存会话，则可以完全关闭笔记本电脑。
对于使用SSD(SSDs)作为主磁盘驱动器的快速笔记本电脑，从睡眠和其他模式恢复之间几乎没有什么好处。因此，确保您的笔记本电脑电池百分比仍然在您下次需要使用它时的位置是一个很好的技巧。
更换(Replace)电池(Battery)、购买(Buy)第二块电池(Battery)、移动电源(Power Bank)或电池逆变器(Battery Inverter)
最后，如果您真的无法将笔记本电脑的电池拉伸到您需要的程度，请考虑如果电池已经使用了几年，则可能需要更换。经过几百次循环后，电池的健康状况会下降，并且它们通常会失去大量的容量。
如果您的笔记本电脑带有易于拆卸的电池，您可以考虑购买第二个并随身携带，以便在需要时更换电池。您甚至可能拥有比随附的笔记本电脑更大容量的电池选项。
许多笔记本电脑现在可以通过 USB-C 电源运行或充电。因此，如果您购买带有USB-C 供电(USB-C Power Delivery)(PD) 的大型移动电源，您可以使用它来让您的所有小工具（包括笔记本电脑）长时间保持充电状态。
如果您需要笔记本电脑长时间运行，例如在轮流停电期间，便携式锂电池逆变器发电站值得考虑。
Tips to Improve Your Windows 11 PC Battery Life
Laptops have bеcome incredibly power effiсiеnt, but there are plenty of situations where you need to extend the battery life of your comрuter as much as possiblе, even if it means making some sacrifices.
If you need to make your Windows 11 PC battery life last longer, try one (or more) of these tips to optimize your battery usage.
Change Your Power Mode
Microsoft Windows 11 has several presets known as “Power Modes” that you can manually switch between to change how much battery drain your computer experiences. To change these power settings:
- Open the Start Menu and open Settings.
- Select System.
- Under System, Select Power & Battery.
- Under Power Mode, choose the one that suits your needs best.
There are three power options: Best power efficiency, Balanced, and Best Performance.
Try moving one notch down from your current power mode to increase battery life. If you switch to Best power efficiency, you may experience a little lag when doing some things on your laptop, but you should see a significant increase in battery life. The old power plans still exist in Windows 11, but Power Modes are easier to use and just as effective in our experience.
Turn Battery Saver On to Manage Background Activity
In addition to power modes, the operating system also has new features such as aggressive Battery Saver mode. Battery Saver disables a group of different functions in Windows 11 that are mostly invisible to you but consume a lot of power. These include email and calendar syncing, live tile updates, and background app activity.
Go to Start > Settings > System > Power & Battery.
Here either choose to turn on the Battery Saver feature immediately or set it to come on automatically once your battery percentage falls below a specified level.
Turn Down Display Brightness
The backlight in our laptop’s screen is one of the biggest power hogs in the whole computer. You’ll add significant battery time by simply turning your laptop’s screen brightness down.
There are two main ways to adjust the brightness on a Windows 11 laptop. The first is to use the settings shortcut in the notification area on the far right of the Taskbar. Left-click on the notification area, and then use your mouse pointer to drag the brightness slider to the left to lower the brightness, or to the right to increase it.
The second way is to use your laptop’s dedicated brightness adjustment buttons. Usually, two of the function keys (e.g., F11 and F12) do double duty as brightness controls.
Turn Off HDR
If you’re lucky enough to have a laptop that supports HDR (High Dynamic Range), you can save some battery power by ensuring HDR is off. HDR allows a screen (showing HDR content) to exceed the maximum brightness of standard content. This makes it possible for some truly jaw-dropping visuals, but more brightness equals more power draw, so it’s a good idea to toggle it off for a nice power saving.
The fastest way to toggle HDR on or off in Windows 11 is to use the Windows Key + Alt + B keyboard shortcut. You can also toggle it in your display settings, but the shortcut is faster and modifies the same setting.
Undervolt Your Computer
You may have heard of “overclocking” where a computer’s components are pushed beyond their factory limits. You definitely shouldn’t do that if you want your laptop’s battery life to be longer, but you can try “undervolting” your laptop instead.
Undervolting requires a dedicated guide of its own, so we won’t try to show you how to do it here. There are many fantastic guides on the web, especially on YouTube. Instead, we’ll explain how it can help.
Every CPU and GPU has a standard voltage it requires to work properly. The wattage of these components is equal to the voltage multiplied by the amperage. If you lower the voltage, that reduces the wattage. Fewer watts means longer battery life, and you’ll have a cooler and quieter laptop to boot!
Undervolting is done in the BIOS or by using an application like Throttlestop. Lowering the voltage of a CPU is harmless, but if you lower it too much, it will introduce instability or prevent the computer from booting in some cases. This is easily rectified by performing a BIOS, or UEFI settings reset; simply check the manual for details.
Turn Off Wireless Technologies
If you don’t need Bluetooth, Wi-Fi, or cellular connectivity, turn these features off in Windows 11 to save on battery power. You can turn each wireless feature off independently by clicking on the notification area and then toggling them in the panel that pops up. Most laptops also have keyboard shortcuts that let you toggle these features on and off without using Windows’ controls.
If you want to turn all your wireless features off at once, use Airplane Mode. Either by toggling the Airplane Mode button in the same panel where you can toggle Wi-Fi and Bluetooth or by using a keyboard shortcut if your laptop has one.
Turn Off Lighting Features
Many gaming-oriented laptops have beautiful RGB lighting features, which usually include at least animated lighting under your keyboard keys; even non-gaming laptops often have underlit keyboards to make it easier for those who need to type in the dark.
Although the power draw from RGB lighting may be small, it’s not insignificant. Either turn it off or or turn it down as far as you can tolerate typing in the dark.
Close Background Apps or Browser Tabs
Battery Saver mode, as discussed above, turns off various background processes that eat power, but you can also manually close background apps that might be using up your juice. Think of applications such as Steam downloading games in the background or all those extra browser tabs you’ve opened.
Close any applications you don’t strictly need at the moment, and that should reduce your overall power consumption significantly. You can also check Windows Task Manager for apps that are using significant amounts of resources and close them if they aren’t needed.
Reduce Your Monitor Refresh Rate and Resolution
Many laptops now have high-resolution monitors with sky-high refresh rates. This makes for a wonderful user experience, but these features require power! If you want your laptop to run for longer, decrease the resolution, the refresh rate, or both.
- To change your resolution, right-click on the Desktop and select Display Settings.
- Under Display Resolution, choose a lower value from the dropdown menu. Be sure to choose a resolution that has the same aspect ratio as the recommended resolution for your screen. This will prevent image distortion. By choosing a lower resolution for your display, the image will appear less crisp, and will seem softer the lower you go. So choose a lower resolution that works best for your needs.
- To reduce the refresh rate, select Advanced Display from the Display window where you changed the resolution.
- Then under Choose a refresh rate, pick a lower refresh rate from the dropdown menu. 60Hz is a good general-purpose refresh rate for work or play, but you can go even lower than this on some laptops, which offers 48hz, 40Hz, 30Hz, and perhaps even lower refresh rate options. This will make motion less smooth, but if you’re doing office work or watching movies, it’s a great compromise to squeeze more life out of the battery.
On some laptops with a VRR (Variable Refresh Rate) display, you’ll also see “Dynamic resolution” as one of the resolution options. This is another great way to save battery power, where Windows will automatically adjust the refresh rate to match the content on-screen. It means you always get the optimal refresh rate for things like video playback, but on some laptops, this may cause visible flickering for some users.
Use Hibernation Instead of Sleep Mode (Or Turn Your Laptop Off)
When you put your laptop to sleep by pressing the power button, it still consumes a small amount of battery power. Hibernate instead uses no power because it saves your RAM contents to disk before shutting down. If you don’t care about saving your session, you can just shut down the laptop completely.
With fast laptops that use SSDs as their primary disk drives, there’s little benefit between resuming from sleep and other modes. So it’s a good trick to ensure your laptop battery percentage is still where it was the next time you need to use it.
Replace the Battery, Buy a Second Battery, a Power Bank, or Battery Inverter
Finally, if you really can’t stretch your laptop battery as far as you need it to go, consider that the battery might need replacement if it’s a few years old. After a few hundred cycles, battery health declines and they typically lose a significant amount of their capacity.
If you have a laptop with an easily-removable battery, you might consider buying a second one and traveling with it so you can swap batteries when needed. You might even have higher capacity battery options than the laptop shipped with.
Many laptops can now run or charge from USB-C power sources. So if you invest in a large power bank with USB-C Power Delivery (PD), you can use it to keep all your gadgets, including your laptop, topped off for extended periods of time.
If you need your laptop to run for extraordinary lengths of time, such as during rolling blackouts, a portable lithium battery inverter power station is worth considering.
