最新的Apple macOS 版本会检测您是否在交流电源上长时间使用笔记本电脑。它会自动将最大电池电量限制为 80%，以延长电池寿命。
在撰写本文时， Windows 10(Windows 10)和 11都没有此功能，但如果您想要一个类似的选项来延长您的Windows笔记本电脑上的电池续航时间，您有几个选择。
为什么要限制(Limit)您的笔记本电脑电池充电水平(Battery Charging Level)？
为什么限制笔记本电脑电池的最大充电量会使其使用寿命更长？这与锂离子电池的化学成分及其工作原理有关。您可以在我们的《电池充电权威指南》(Definitive Guide to Battery Charging)中获得深入的解释。
简短的版本是锂电池不喜欢长时间保持在最大充电容量。这会给电池带来压力并更快地耗尽它。您正在加快必须更换(replace)它的速度。如果您拥有众多现代薄型笔记本电脑中的一款，其中的电池不可拆卸且专业更换非常昂贵，那么这将是一个大问题。
通过将最大充电量限制为 80%，您可以最大限度地延长电池的使用寿命。由于现代锂电池的充电速度非常快，因此在拔下 AC 适配器之前充满最后 20% 的容量并不是什么大问题。
Window 的有限电池设置
如果您在 Windows 10 或 11 中打开电源选项，打开(Power Options)高级电源设置(advanced power settings)，然后展开电池部分( battery section)，您将找不到太多内容。
所有设置都与电池电量不足时Windows应执行的操作有关。(Windows)
避免让您的电池达到临界水平很重要，因为这也可以提高电池寿命，因此至少您可以设置一个舒适的临界关闭水平。
使用第三方应用程序
由于Windows没有内置此功能，因此您可以使用第三方应用程序来实现类似的结果。不幸的是，这些应用程序都无法控制您的笔记本电脑何时开始充电或停止充电的百分比。相反，他们会为您提供有关电池的信息，并建议您更改设置或在适当的时候手动拔掉笔记本电脑的电源。
Battery Limiter是一款简单的免费软件应用程序，当您的笔记本电脑充电至预设阈值时，它只会发出声音警报。如果您想在将笔记本电脑用作台式计算机时限制电池电量，这并没有多大用处。尽管如此，对于主要始终使用电池供电的用户来说，这仍然是确保您不会过度充电的好方法。
默认情况下，阈值设置为 90%，但您可以将其调整到 96%，刚好充满电。应用程序开发人员相信您会在最大充电量与该范围内的电池磨损之间达到最佳平衡点。
Battery Optimizer使用专有的分析方法来检查笔记本电脑电池的现有健康状况，并建议您可以采取哪些措施来保持这种健康状况。
根据我们阅读的关于该应用程序的用户评论，它似乎确实有助于延长电池寿命和电池寿命，但后者很难证明。
除了专有的、特定品牌的充电限制器之外，Battery Optimizer是让您的电池长期保持良好状态的下一个最佳方法。
限制常见笔记本电脑(Common Laptop)品牌的电池(Battery)充电
虽然我们发现没有第三方软件可以阻止您的电池充电超过一定百分比，但笔记本电脑制造商可以将此功能内置到他们的硬件中。
如果您的笔记本电脑支持充电阈值，您很可能会在UEFI菜单中找到手动设置（旧(UEFI)BIOS技术的替代品）。由于访问不方便，许多笔记本电脑制造商提供第一方应用程序来切换这些硬件级别的设置，而无需重新启动系统。
我们在下面介绍了一些最受欢迎的笔记本电脑品牌，但即使您拥有其中之一，您的特定型号也可能会在它是否支持该功能或如何访问它方面有所不同。请查阅笔记本电脑的手册并记住，您可能必须在旧笔记本电脑上执行固件更新才能访问电池阈值设置。
限制华硕笔记本电脑的充电(Limiting Charge on Asus Laptops)
华硕(Asus)有一个官方充电阈值功能，称为华硕电池健康充电(Asus Battery Health Charging)。这是作为MyASUS的一部分预装在(MyASUS)华硕(Asus)笔记本电脑上的应用程序，但很容易错过。您最初会收到“电池(Battery)电源设置现在处于全容量模式(Full Capacity Mode)”消息，但如果您关闭该消息，您只会在 90 天后收到另一条通知。
要访问不同的模式，您可以右键单击电池图标并选择最长寿命模式(Maximum Lifespan Mode)，它会在 60% 时停止充电。这对于经常使用插入的笔记本电脑工作的用户来说是完美的。只需(Just)记住在您需要旅行之前将其切换到全容量模式(Full Capacity Mode)足够长的时间，以便有时间充电。
平衡(Balanced)模式将您的电量限制在 80%，因此，如果您必须在没有警告的情况下离开，您应该有足够的电池寿命，同时仍能防止最严重的电池退化。
如果您喜欢在Linux上花时间，华硕(ASUS)笔记本电脑还支持该操作系统中的电池阈值。(battery thresholds)
限制戴尔笔记本电脑的充电(Limiting Charge on Dell Laptops)
戴尔笔记本电脑预装了戴尔电源管理器实用程序。(Dell Power Manager Utility)您所要做的就是启动应用程序，打开电池信息(Battery Information)选项卡，然后选择设置。
选择主要交流使用(Primarily AC Use)选项，这将自动限制充电以延长电池寿命。
限制惠普笔记本电脑的充电(Limiting Charge on HP Laptops)
如果您使用的是 HP 笔记本电脑，则可以激活Adaptive Battery Optimizer。并非每台 HP 笔记本电脑都具有此功能，因此您必须检查它是否包含在您的特定型号中。
要激活该功能(activate the feature)：
- 启动或重新启动计算机。
- 按F10进入HP 计算机设置(HP Computer Setup)。
- 选择配置(Configuration)。
- 将Adaptive Battery Optimizer(Adaptive Battery Optimizer)更改为Enabled。
要检查功能的状态：
- 启动或重新启动计算机。
- 按Escape打开启动菜单。
- 按F2打开HP PC 诊断 UEFI(HP PC Diagnostic UEFI)。
- 选择Power > Battery > Run Once。
- 测试完成后，选择Battery Details。
现在只需检查结果中的自适应电池优化器(Adaptive Battery Optimizer )状态。它应该被启用/激活。
限制联想笔记本电脑的充电(Limiting Charge on Lenovo Laptops)
在联想(Lenovo)笔记本电脑上设置充电限制的最佳方法是使用联想(Lenovo)自己的内部Lenovo Vantage软件。这是一款适用于联想(Lenovo)笔记本电脑用户的通用笔记本电脑实用程序，具有高级电源选项，包括将电池电量限制在 55% 和 60% 之间的节能模式。(Mode)
限制Microsoft Surface 笔记本电脑的充电(Microsoft Surface Laptops)
具有讽刺意味的是，微软自家的Surface笔记本设备在(Surface)UEFI菜单中内置了电池充电限制功能。启动到UEFI菜单后，选择Boot Configuration > Advanced Options并打开启用电池限制模式(Enable Battery Limit Mode)。
限制 MSI 笔记本电脑的充电(Limiting Charge on MSI Laptops)
MSI用户可以使用Dragon Center或Creator Center应用程序（取决于笔记本电脑类型）来设置电池阈值。选择应用左侧部分的工具箱图标。在Battery Health Option下，您会看到三个选项。
Best for Mobility只是将电池完全充电。平衡(Balanced)模式将电池充电到 70% 以下，但在 80% 时停止充电。最(Best)适合电池(Battery)模式移动目标在 50% 和 60% 之间。
为什么不取出电池？
如果您有一台带可拆卸电池的笔记本电脑，您可能会认为您可以简单地取出电池，仅在您想在旅途中使用笔记本电脑时将其放入。这是一个选项，因为大多数笔记本电脑都可以在没有电池的情况下使用充电器运行。
但是，这消除了防止笔记本电脑数据丢失的固有安全网。如果电源波动或停电，您可能会丢失重要信息。在笔记本电脑开机时更换或取出电池也可能不安全，因此取出和重新插入电池很麻烦。
另一方面，如果您有一台带可拆卸电池的笔记本电脑，您可能不会关心延长其使用寿命。毕竟，您只需订购一个新的并在几秒钟内将其换成旧的单元。
How to Limit Battery Charge to a Certain Percentage in Windows 11/10
The latest Apple macOS versions detect whether you’re using the laptop on AC power for extended amounts of time. It automatically limits the maximum battery level to 80% to extend yоur battеry life.
Neither Windows 10 nor 11 have this feature at the time of writing, but if you want a similar option to make your battery last longer on your Windows laptop, you have a few options.
Why Limit Your Laptop Battery Charging Level?
Why does limiting the maximum charge of your laptop battery make it last longer? This has to do with lithium-ion battery chemistry and how it works. You can get an in-depth explanation in our Definitive Guide to Battery Charging.
The short version is that lithium batteries don’t like to be kept at maximum charge capacity for prolonged periods. This stresses the battery and wears it out more quickly. You are hastening the point where you have to replace it. That’s a massive problem if you have one of the many modern thin laptops where the battery is not removable and quite expensive to replace professionally.
By limiting the maximum charge to 80%, you maximize your battery’s useful lifespan. Thanks to how quickly modern lithium batteries can charge, filling that last 20% capacity before you unplug the AC adapter isn’t a big deal.
Window’s Limited Battery Settings
If you open up Power Options in Windows 10 or 11, open advanced power settings, and expand the battery section, you won’t find much there.
All of the settings are related to what Windows should do when battery power gets low.
It is important to avoid letting your battery reach critical levels, as that also improves battery longevity, so at least you can set a comfortable critical shutdown level.
Using a Third-party App
Since Windows doesn’t have this feature built-in, you can use a third-party app to achieve a similar outcome. Unfortunately, none of these apps can control when your laptop starts charging or at what percentage it will stop charging. Instead, they’ll provide you with information about your battery and advise you to change your settings or manually unplug your laptop when the time is right.
Battery Limiter is a simple freeware app that simply sounds an audible alarm when your laptop has charged up to the preset threshold. This isn’t much use if you want to limit your battery charge when using your laptop as a desktop computer. Still, it’s an excellent way to ensure you don’t overcharge your machi for users who are mainly always on battery power.
The threshold is set to 90% by default, but you can adjust it up to 96%, just short of a full charge. The app developer believes you’ll hit the sweet spot between maximum charge versus battery wear within the range.
Battery Optimizer uses proprietary analysis methods to check the existing health of your laptop battery and suggests things you can do to preserve that health.
Based on the user review we’ve read about the application, it does seem to help both extend battery life and battery lifespan, but the latter is hard to prove.
Apart from a proprietary, brand-specific charge limiter, Battery Optimizer is the next best way to keep your battery in good condition over the long term.
Limiting Battery Charge on Common Laptop Brands
While no third-party software we found can stop your battery from charging above a certain percentage, laptop manufacturers can build this feature into their hardware.
If your laptop supports a charging threshold, you can most likely find the manual setting in the UEFI menu (the replacement for the old BIOS technology). Since that’s not convenient to access, many laptop manufacturers offer a first-party app to toggle those hardware-level settings without rebooting your system.
We’re covering a few of the most popular laptop brands below, but even if you have one of these, your specific model might differ on whether it supports the feature or how to access it. Consult your laptop’s manual and keep in mind that you may have to perform a firmware update on older laptops to access battery threshold settings.
Limiting Charge on Asus Laptops
Asus has an official charging threshold feature it calls Asus Battery Health Charging. This is an application preinstalled on Asus laptops as part of MyASUS, but it’s easy to miss. You’ll initially get a “Battery power setting is in Full Capacity Mode now” message, but you’ll only get another notification 90 days later if you dismiss that message.
To access the different modes, you can right-click the battery icon and select Maximum Lifespan Mode, which stops charging at 60%. This is perfect for users who constantly work with their laptops plugged in. Just remember to switch it to Full Capacity Mode long enough before you need to travel so that there’s time to charge up.
Balanced mode caps your charge at 80%, so if you have to leave without warning, you should have a usable amount of battery life left while still preventing the worst battery degradation.
If you like to spend time in Linux, ASUS laptops also support battery thresholds in that operating system.
Limiting Charge on Dell Laptops
Dell laptops come with the Dell Power Manager Utility pre-installed. All you have to do is launch the app, open the Battery Information tab, and select settings.
Select the Primarily AC Use option, which will automatically limit charging to extend battery lifespan.
Limiting Charge on HP Laptops
If you’re using a notebook from HP, you can activate the Adaptive Battery Optimizer. Not every HP laptop has this feature, so you’ll have to check whether it’s included with your specific model.
To activate the feature:
- Start or reboot the computer.
- Press F10 to enter HP Computer Setup.
- Choose Configuration.
- Change Adaptive Battery Optimizer to Enabled.
To check the status of the feature:
- Start or reboot the computer.
- Press Escape to open the startup menu.
- Press F2 to open the HP PC Diagnostic UEFI.
- Choose Power > Battery > Run Once.
- Once the test is done, select Battery Details.
Now simply check the Adaptive Battery Optimizer status in the results. It should be Enabled/Activated.
Limiting Charge on Lenovo Laptops
The best way to set a charge limit on a Lenovo laptop is to use Lenovo’s own in-house Lenovo Vantage software. This is a general-purpose laptop utility for Lenovo laptop users with advanced power options, including a Conservation Mode that will limit the battery charge to between 55% and 60%.
Limiting Charge on Microsoft Surface Laptops
Ironically, Microsoft’s own Surface laptop devices have a built-in battery charging limit feature in the UEFI menu. Once you’ve booted into the UEFI menu, choose Boot Configuration > Advanced Options and toggle Enable Battery Limit Mode on.
Limiting Charge on MSI Laptops
MSI users can use the Dragon Center or Creator Center apps (depending on the laptop type) to set a battery threshold. Select the toolbox icon in the lefthand section of the app. Under Battery Health Option, you’ll see three options.
Best for Mobility just pushes the battery to full charge. Balanced mode charges the battery under 70% but stops charging at 80%. Best for Battery mode moves that target lower between 50% and 60%.
Why Not Remove the Battery?
If you have a laptop with a removable battery, you might be thinking that you can simply remove the battery and only put it in when you want to use your laptop on the go. This is an option, as most laptops will run from the charger just fine without a battery in.
However, this removes the inherent safety net against laptops’ data loss. If the power fluctuates or there’s a blackout, you may lose important information. It may also be unsafe to replace or remove the battery while the laptop is on, making it a hassle to remove and reinsert the battery.
On the other hand, if you have a laptop with a removable battery, you might not care about increasing its lifespan. After all, you can just order a new one and swap it for the worn unit in seconds.
