Check Battery Usage on Mac: Find Power-Hungry Apps

Understanding Energy Usage on Your Mac
Your macOS system actively monitors and reports the energy impact of all currently running applications.
Similar to the functionality found on iPhones and iPads, you're able to identify precisely which applications are consuming the greatest amount of power.
Monitoring Application Power Consumption
This allows for informed adjustments to your usage patterns, helping to maximize battery life and prevent unexpected power depletion.
By observing which apps demand the most energy, you can make conscious decisions about when and how to use them.
Beyond Applications: Other Battery Drain Factors
It’s important to recognize that applications aren't the sole contributors to battery drain.
Essential hardware elements, including the display, Wi-Fi connectivity, and Bluetooth, all consume power while activated.
A Comprehensive View of Energy Use
Therefore, the list of energy-consuming applications represents only a portion of the overall energy expenditure.
However, it remains a significant component, and one over which users have considerable influence and control.
Understanding this interplay between software and hardware is key to optimizing your Mac’s power efficiency.
Identifying Power-Hungry Applications on Your Mac
Related: Understanding Battery Drain on iPhones and iPads
Beginning with OS X 10.9 Mavericks, macOS has included a feature within the Battery status menu that lists applications consuming significant energy. This provides a quick way to identify programs potentially shortening your Mac’s battery life.
Selecting the battery menu icon in your Mac’s menu bar initiates the process of gathering power usage data. Shortly after, a list titled "Apps Using Significant Energy" will be displayed. Should no applications be drawing excessive power, a message indicating "No Apps Using Significant Energy" will appear instead.

The definition of "significant energy" as determined by Apple refers to applications consuming higher than average power from the battery. This is a dynamic assessment based on typical usage patterns.
It’s expected that certain applications will occasionally appear on this list, contingent on their current activity. For instance, resource-intensive games will naturally utilize substantial energy and be reflected in the report. Similarly, video encoding processes within media applications demand considerable CPU resources.
Related: Utilizing Activity Monitor for Mac Troubleshooting
However, the presence of an application on this list can also indicate inefficiency when compared to its peers. While popular, Google Chrome is often noted for its comparatively lower power efficiency relative to Apple’s native Safari browser. Switching to Safari may improve battery performance in such cases.
Furthermore, applications exhibiting unexpected behavior may also appear due to malfunctions. A program experiencing a bug and consuming an unusually high percentage of CPU resources will be flagged. If an application seems to be unnecessarily draining power, attempting to close and reopen it is a recommended first step.
If the battery menu is not visible, it must be enabled through System Preferences. Access the Apple menu, then select "System Preferences." Navigate to the "Energy Saver" icon and verify that the "Show battery status in menu bar" option is checked.

Regularly checking this list can help you proactively manage your Mac’s battery life and identify applications that may require optimization or alternative solutions.
Understanding Application Energy Consumption
Apple prioritizes simplicity in its user interface, and consequently, detailed energy usage information isn't readily available to most users. Unlike mobile operating systems such as iOS and Android, macOS doesn’t provide a comprehensive breakdown of power consumption for each application.
However, it is possible to identify applications that are contributing significantly to battery drain. This information can be accessed through the Activity Monitor application. You can reach this by clicking an app listed under "Apps Using Significant Energy" in the battery status menu.
Accessing the Activity Monitor
Alternatively, you can launch the Activity Monitor directly. Initiate a Spotlight search by pressing Command+Space, then type "Activity Monitor" and press Enter. Another method involves opening a Finder window, navigating to the "Applications" folder in the sidebar, opening the "Utilities" folder, and then double-clicking the "Activity Monitor" application.
Within the Activity Monitor window, select the "Energy" tab. Each application listed will have an associated "Energy Impact" score.
Interpreting the Energy Impact Score
The Energy Impact score is calculated by macOS based on various factors, including CPU usage, disk activity, and network activity. A higher score indicates a greater impact on your battery life.
By default, the applications are sorted by their current "Energy Impact"—reflecting their immediate effect on battery consumption.
To view a broader perspective, you can sort the list by "Average Energy Impact" by clicking the corresponding heading. This provides insight into each app’s overall energy consumption over time, rather than just its current usage.
It’s important to note that the "Energy Impact" score is an estimated value, not a precise measurement of actual energy usage. It’s a relative indicator based on resource utilization.
Understanding Average Energy Impact Data
The "Average Energy Impact" data is compiled over the preceding eight hours of your Mac’s operation. If your Mac has been running for less than eight hours since its last startup, the data will reflect only the time it has been active.
For instance, if your Mac was powered on for seven hours, then slept overnight, and was turned on again, the data will combine the initial seven-hour period with the current active session.
The system excludes periods of sleep or hibernation when calculating the eight-hour average. Furthermore, the "Average Energy Impact" data is retained for applications that have been closed, displaying them in a grayed-out state within the list.
Extending Battery Life
Battery life is a common concern for MacBook users. Understanding how applications consume power is a crucial first step towards optimization.
If a particular application is identified as a significant drain on your battery, consider closing it or opting for a more energy-efficient alternative, especially when prolonged battery operation is necessary.
Managing Startup Applications
Preventing applications from automatically launching at startup can substantially reduce background battery usage. This ensures that these programs only consume power when actively utilized.
Occasionally, an application may exhibit unusual battery drain. A simple resolution often involves closing and restarting the problematic app.
It’s important to acknowledge that frequently used applications will inevitably contribute to overall energy consumption.
Beyond Application Management
Optimizing battery performance isn't solely dependent on application control. Adjusting display brightness and utilizing other power-saving features can yield significant improvements.
For a comprehensive overview of techniques to maximize your MacBook’s battery life, refer to our dedicated guide.
MacBook battery optimization involves a combination of application management and system settings adjustments.