Article Number: 000123091
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The performance of a battery can get impacted due to several reasons such as power settings, how many apps are running, and even the temperature of the room in which you are working.
Laptop configuration and power settings can impact the battery performance. This includes settings such as:
Consider the following to help reduce the power consumption of the computer and conserve battery charge:
Power plan, also known as power scheme, is a collection of hardware and system settings that manages how computers use and conserve battery power.
|Balanced (recommended)||Automatically balances performance with energy consumption on capable hardware.|
|Power saver||Saves power by reducing the computer’s performance where possible.|
|High performance||Maximizes computer’s performance and responsiveness. This setting uses more power.|
Dell Power Manager allows you to select a Battery Setting that is optimized for specific computer usage patterns. For example, some settings focus on extending battery life, while others provide fast charge times. Available settings may be limited, depending on the battery. Possible battery settings include:
To learn more, see our Guide to Dell Power Manager.
Dell computers are portable powerhouses. Like the gas mileage for race cars varies based on how fast it goes, the battery runtime on your computer varies based on what configuration you have and how you are using it. Turning your screen brightness all the way up and running multiple power-intensive programs can drain your battery quickly. Below are some basic and advanced tips for getting more battery runtime out of your Dell computer.
Manufacturers make battery runtime claims based on specific tests in controlled environments. For example, on our XPS 13 Plus with an OLED screen, we download and run Netflix from the Microsoft Store to see how long the battery lasts. That length of time can vary based on the panel and configuration of your laptop.
The first tip to improve battery runtime is to adjust your screen brightness. The panel in a laptop is one of the biggest power draws in the computer. Clicking it down a few notches can get you significant battery savings. Also, if you are using an OLED screen, consider switching to dark mode in apps or applying a dark theme to Windows.
Figure 1: Screen brightness
Windows 11 offers a battery saver mode that is one of the easiest ways to improve your battery runtime. To enable it, click the battery icon in the System Tray and then click the option for Battery saver.
If you are still looking to maximize your battery, consider closing apps that use a lot of power. To look at Battery usage per app, click the Windows logo and then select Power Options. Scroll down to Battery usage and expand that menu. This reveals a Battery usage per app ranked list of applications by estimated power consumption.
Figure 2: Battery usage per app
If you are still looking to maximize your battery, consider closing unused applications. If you are still trying to eke the maximum amount of battery from your computer, you can enable Airplane Mode to further stretch your usage. Be aware that you cannot access the internet or online files in Airplane Mode!
If you have exhausted your options in the built-in Windows settings, there are several advanced tools and changes you can use to extend the battery runtime on your Dell computer.
First, to further understand how different applications are using your battery, open Task Manager by pressing Ctrl+Shift+Escape. Ensure that the More details dropdown is selected and then scroll to the right of the screen to see Power usage. This column of data can show you what apps are consuming the most power while running your computer. Knowing what applications are consuming your battery most can help you decide which power-hungry apps to close. Closing applications without understanding what the app can be risky. Be sure that you are aware of what any app is doing before you click close.
Figure 3: Task Manager Power usage
Disabling Intel’s Turbo Boost functionality can also increase your computer’s battery runtime, at the cost of some performance. First enter Dell’s BIOS settings. For more information about how to get to BIOS settings, reference How to Access UEFI (BIOS) System Setup from Microsoft Windows on your Dell Computer. Under the Performance tab, scroll down to Intel Turbo Boost Technology and then change the selection to Off. This reduces your computer’s maximum performance, but it also positively affects your computer’s battery runtime.
Figure 4: Disabling Intel Turbo Boost Technology
Another advanced tool that you can use to understand how your computer is consuming energy is Intel’s SoC Watch. Intel SoC Watch analyzes the energy that is used by the CPU to identify any specific computer behaviors that are using too much energy. You can learn more about Intel SoC Watch and download the tool from https://www.intel.com/content/www/us/en/develop/documentation/energy-analysis-user-guide/top.html .
Battery health affects the performance of the laptop and battery run time. It is important to check the battery health and make the necessary changes to improve performance. On Dell laptops, battery health can be measure using different ways.
Battery life or battery run time is how long a battery lasts between charges. Battery life depends on battery capacity (number of cells or watt-hours (Wh) of a battery). More cells or higher watt-hours in the battery can power the laptop for a longer time under the same operating conditions.
Battery capacity is a measure of charge that can be stored in the battery. The capacity of a battery reduces as the battery chemically ages which results in lesser hours of usage between charges. The maximum battery capacity measures the capacity of the battery relative to when it was new.
Battery life span is how often a battery can be recharged before the charge capacity starts to reduce. The normal characteristic of a rechargeable battery is that the charge capacity reduces gradually with each discharge-charge cycle. Typically, you will notice reduced battery life after 18–24 months. If you are a power user, you may notice reduced battery life sooner than 18 months.
Powercfg is a hidden tool in Microsoft Windows that can generate a report of the battery history. The report includes information about battery performance and allows you to observe any decline in battery capacity. To generate a battery report:
cmdand press Enter key.
powercfg /batteryreportand press Enter. (note the space between
battery-report.htmlto open the report in the browser.
Watch this YouTube video to learn how to increase the battery life on a Dell laptop.
Closed captions: English only.
Watch this video to learn how to maximize the battery runtime on a Dell laptop.
Closed captions: Available in multiple languages. Click the CC icon, and then select the preferred language.
20 Dec 2022