If you think that you have the best batteries money can buy and have a significant backup time, your laptop is still prone to losing its backup duration over time. Most modern laptop batteries are made of lithium-ion cells (Li-ion) or lithium-polymer (Li-poly). Even these are prone to slow degradation and eventually you will need to replace them. Fortunately, there is a method to extend your battery’s life before it is too late, especially if you keep it plugged in most of the time. This can be done by limiting the maximum charging percentage of the battery well below 100% so that it does not overcharge, since leaving the batteries fully charged for long periods tends to damage them in the long run. Today we are going to show you how to cap your battery’s charging so it does not exceed a certain limit, automatically extending its life. This can be achieved in laptops from the following manufacturers:
DellHPLenovoMicrosoft SurfaceAsus
Best Practice to Extend Battery Life
As per research and findings, generic battery consumption should be between 20 and 80%. This keeps the battery from completely draining as well as not being overcharged. However, in the case of laptops, it is said that they should be kept between 40 and 80% for maximum battery efficiency. Laptop manufacturers also recommend that a laptop battery’s maximum charging state should be kept below 80%, especially if it is plugged into the AC port most of the time. It is also why the power management software by these manufacturers also limits the maximum charge to 80% under certain settings.
How to Limit Battery Charge Threshold in Windows 11/10
Microsoft Windows, or any other operating system for that matter, does not offer the feature to limit the battery’s charging threshold. This is usually controlled either through the system’s BIOS or through the manufacturer’s proprietary power management software. However, the software’s compatibility with the operating system is highly dependent. Let us now see the methods to limit charging capacity on laptops from different manufacturers.
Limit Battery Charge on Dell Laptops
If you have a laptop from Dell which is frequently plugged into the charging port, then you can limit the charging threshold to extend the battery’s life. Here is how: By applying these settings, the device’s charging threshold will be set to 80%. Note: If you do not see the “Primarily AC use” option, then your device may not be compatible with the settings. If so, unfortunately, there is no other way to limit the charging threshold for your device. If you want to charge your device’s battery to 100% in the future, for when you are planning to use it without an AC power source, you can select either “Standard” or “Adaptive” from the options.
Limit Battery Charge on HP Laptops
If you’re using an HP laptop, then you can most likely limit its charging threshold from the system BIOS, if your device supports it. Here are the steps to do so: Your device will now only charge up to 0% of its total capacity. If you wish to revert these settings in the future, simply change the value for Battery Care Function from the BIOS.
Limit Battery Charge on Lenovo Laptops
If you own a Lenovo laptop, then follow these steps to limit its maximum charging percentage: Once this configuration is done, your battery’s charge percentage will remain between the configured values. If you wish to charge your Lenovo laptop to 100% again, simply turn off the “Battery Charge Threshold” feature.
Limit Battery Charge on Microsoft Surface Laptops
If you’re using a Surface laptop, then you can enable battery limiting through its UEFI settings. However, Surface laptops do not allow you to configure the threshold but only enable or disable the feature. When it is enabled, the device’s battery will only charge to a maximum of 50%. Before you go about changing these settings, confirm that your device is supported. Here is a list of the supported devices:
Surface Pro 7 and laterSurface Laptop 3 and laterSurface Book 3Surface Laptop StudioSurface Laptop GoSurface Laptop Go 2Surface Studio 2Surface Laptop SE
To enable the feature, simply toggle the slider in front of “Enable battery limit mode” in the Advanced options settings to the on position. If you’re using a model not mentioned in the list above, refer to this Microsoft post to learn how to enable it on your device.
Limit Battery Charge on Asus Laptops
Asus also offers a proprietary application to manage its power settings. Follow these steps to limit your device’s maximum battery charging capacity and increase its longevity: Note: Check if your device is supported on Asus’s website. This will now limit your device’s charging at the value according to the selected option.
Balanced Mode: The maximum charge percentage is set to 80% and the laptop starts to charge at 78%.Maximum Lifespan Mode: The maximum charge percentage is set to 60% and the laptop starts to charge at 58%.
If you wish to change its maximum charging capacity to 100%, simply select “Full Capacity Mode” from the MyASUS app in front of “Battery Health Charging.” To learn more about ASUS Battery Health Charging, here is a complete guide.
Final Thoughts
It is always better to take precautions before leading to mishaps, or in this case, before your device’s battery expires prematurely. By setting a cap on the maximum charging limit on your laptop’s battery, you can ensure that it does not retain its full charging capacity for prolonged hours and does not swell up, thus ensuring its longevity.
