Article Number: 000123091
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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 computer’s performance where possible.|
|High performance||Maximizes computer’s performance and responsiveness. Uses more power.|
Dell Power Manager and Dell Command | Power Manager allows you to select a Battery Setting that is optimized for specific system 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:
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.
To learn more, see the Dell knowledgebase article: How to check battery health status on a Dell laptop.
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. 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:
How to Increase Laptop Battery Life (Official Dell Tech Support) on YouTube - (1:56)
Maximize Laptop Battery Runtime - (1:25)
21 Feb 2021