本文說明 Batterystats 工具與 Battery Historian 指令碼的基本設定步驟和工作流程。如要瞭解如何使用 Battery Historian 檢查電池耗電模式,請參閱「使用 Battery Historian 分析電源使用情況」。
Batterystats 是 Android 架構中的一項工具,可收集裝置的電池資料。您可以透過 adb 將收集到的電池資料轉儲到開發機器,然後利用 Battery Historian 建立可分析的報表。Battery Historian 會將報表從 Batterystats 轉換成 HTML 圖表,方便您在瀏覽器中查看。
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
78445dd45222: Pull complete
Digest:
sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal
請先啟動 Docker Desktop 應用程式 (即 Docker 的 GUI 前端),再執行 Battery Historian 映像檔。執行這個映像檔會將 Docker 工具初始化。這個步驟必須至少執行一次,Battery Historian 才能運作。
docker run -p port_number:9999 gcr.io/android-battery-historian/stable:3.1 --port 9999
如要在 Battery Historian 中檢視資料,請在瀏覽器中開啟 Battery Historian。在 Mac 和 Linux,Battery Historian 會在 http://localhost:port_number 執行。如果是 Windows,Battery Historian 則在 http://your_IP_address:port_number 執行。
按一下「Browse」,然後選擇您建立的錯誤報告檔案。
按一下「Submit」。Battery Historian 會開啟依據 Batterystats 資料建立的圖表。
使用 Battery Historian 圖表檢視資料
Battery Historian 會以圖表呈現一段時間內的電力相關事件。
當系統元件因處於使用狀態而消耗電池電力時,圖表的每一列都會顯示有顏色的長條線段。此圖表不會顯示元件已使用多少電力,只會顯示應用程式是否處於使用狀態。系統會依類別歸納圖表,以長條圖顯示各類別的變化趨勢,如圖表的 x 軸所示。
圖 3. Battery Historian 圖表示例。
從下拉式清單新增其他指標。
將游標懸停在指標名稱上,即可查看每個指標的詳細資訊,包括圖表中所用顏色的說明。
將游標懸停在長條上,即可查看該指標的詳細資訊,以及時間軸上特定時間點的電池統計資料。
其他 Batterystats 輸出內容
在 Battery Historian 圖表後的統計資料部分中,您可以查看 batterystats.txt 檔案的其他相關資訊。
[null,null,["上次更新時間:2025-07-27 (世界標準時間)。"],[],[],null,["# Profile battery usage with Batterystats and Battery Historian\n\n| **Warning:** Battery Historian is no longer actively maintained; if possible, consider using [system tracing](/topic/performance/tracing), the [Macrobenchmark power metric](/topic/performance/benchmarking/macrobenchmark-metrics#power), or the [Power Profiler](/studio/profile/power-profiler) to get insights into battery performance.\n\nThis document shows the basic setup steps and workflow for the Batterystats tool\nand the Battery Historian script. To learn how to use Battery Historian to\ninspect battery consumption patterns, see [Analyze power use with Battery\nHistorian](/topic/performance/power/battery-historian).\n\nBatterystats is a tool included in the Android framework that collects battery\ndata on your device. You can use [`adb`](/studio/command-line/adb) to dump the\ncollected battery data to your development machine and create a report you can\nanalyze using Battery Historian. Battery Historian converts the report from\nBatterystats into an HTML visualization that you can view in your browser.\n\nBatterystats and Battery Historian are useful for the following:\n\n- Showing you where and how processes are drawing current from the battery.\n- Identifying tasks in your app that can be deferred or removed to improve battery life.\n\n| **Note:** To use Batterystats and Battery Historian, you need a mobile device with [USB debugging](/studio/debug/dev-options) enabled.\n\nInstall Battery Historian\n-------------------------\n\nYou can use Docker to install Battery Historian. For alternative installation\nmethods, including building from source, see the\n[README](https://github.com/google/battery-historian) on the\nproject's GitHub page. To install using Docker, do the following:\n\n1. Install Docker by following the instructions on the\n [Docker website](https://docs.docker.com/desktop). Any\n [subscription](https://docker.com/pricing) type works,\n including a free Personal subscription.\n\n2. To confirm Docker is correctly installed, open the command line and\n enter the following command:\n\n docker run hello-world\n\n If Docker is correctly installed, it displays an output like this: \n\n Unable to find image 'hello-world:latest' locally\n latest: Pulling from library/hello-world\n 78445dd45222: Pull complete\n Digest:\n sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7\n Status: Downloaded newer image for hello-world:latest\n\n Hello from Docker!\n This message shows that your installation appears to be working correctly.\n\n To generate this message, Docker took the following steps:\n 1. The Docker client contacted the Docker daemon.\n 2. The Docker daemon pulled the \"hello-world\" image from the Docker Hub.\n 3. The Docker daemon created a new container from that image which runs the\n executable that produces the output you are currently reading.\n 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal\n\n3. Launch the Docker Desktop app---which is a GUI frontend for Docker---before\n you run the Battery Historian image. Running this initializes the Docker\n tools. Battery Historian doesn't run until you do this at least once.\n\n4. Run Battery Historian from the command line when running it for the first\n time. The Docker Desktop app doesn't let you specify the port to run the web\n server on. You can only do this from the command line. However, after you\n successfully run the container from the command line, an entry is created in\n Docker Desktop, and then you can launch it using the same listener port\n from Docker Desktop.\n\n5. Run the Battery Historian image using the following command:\n\n ```\n docker run -p port_number:9999 gcr.io/android-battery-historian/stable:3.1 --port 9999\n ```\n\n Battery Historian uses the port of your choice, as specified using\n \u003cvar translate=\"no\"\u003eport_number\u003c/var\u003e.\n | **Note:** If you're using a Windows machine, you might need to enable virtualization in your BIOS. Check the documentation for your motherboard for more information about how to enable virtualization. If you can run the [Android Emulator](/studio/run/emulator), then virtualization is already enabled.\n6. Navigate to Battery Historian in your browser to confirm it's running. The\n address varies depending on your operating system:\n\n For Linux and Mac\n : Battery Historian is available at\n `http://localhost:`\u003cvar translate=\"no\"\u003eport_number\u003c/var\u003e.\n\n For Windows\n : After you start Docker, it tells you the IP address of the machine it\n is using. For example, if the IP address is 123.456.78.90, Battery\n Historian is available at\n `http://123.456.78.90:`\u003cvar translate=\"no\"\u003eport_number\u003c/var\u003e.\n\n \u003cbr /\u003e\n\n It then displays the Battery Historian start page, where you can upload and\n view battery statistics.\n **Figure 1.** The start page for Battery Historian.\n\nGather data with Batterystats\n-----------------------------\n\nTo collect data from your device using Batterystats and open it in Battery\nHistorian, do the following:\n\n1. Connect your mobile device to your computer.\n\n2. From a Terminal window, shut down your running `adb` server by running the\n following command:\n\n adb kill-server\n\n3. Restart `adb` and check for connected devices by running the following\n command.\n\n adb devices\n\n It lists your device, similar to the following example output.\n **Figure 2.** The output of `adb devices`, showing one connected device\n\n If it doesn't list any devices, make sure your phone is connected and [USB\n debugging](/studio/debug/dev-options#Enable-debugging) is enabled, and then\n stop and restart `adb`.\n4. Reset battery data gathering by running the following command:\n\n adb shell dumpsys batterystats --reset\n\n The device is always collecting Batterystats and other debugging information\n in the background. Resetting erases previous battery collection data. If you\n don't reset, the output can be very large.\n5. Disconnect your device from your computer so that you are only drawing\n current from the device's battery.\n\n6. Use your app and perform actions for which you want to collect data for. For\n example, disconnect from Wi-Fi and send data to the cloud.\n\n7. Reconnect your phone.\n\n8. Make sure your phone is recognized and run the following command:\n\n adb devices\n\n9. Dump all battery data by running the following command. This can take a\n while.\n\n ```\n adb shell dumpsys batterystats \u003e [path/]batterystats.txt\n ```\n\n The `batterystats.txt` file is created in the directory you specify using\n the optional path argument. If you don't specify a path, the file is\n created in your home directory.\n10. Create a report from raw data.\n\n For devices running Android 7.0 and higher:\n :\n\n ```\n adb bugreport [path/]bugreport.zip\n ```\n\n For devices running Android 6.0 and lower:\n :\n\n ```\n adb bugreport [path/]bugreport.txt\n ```\n\n \u003cbr /\u003e\n\n Bugreport can take several minutes to complete. Don't disconnect your\n device or cancel the process until it's complete.\n\n As with `batterystats.txt`, these files are created in the directory you\n specify using the optional \u003cvar translate=\"no\"\u003epath\u003c/var\u003e argument. If you\n don't specify a path, they are created in your home directory.\n\n If it's not already running, run Battery Historian using the following\n command: \n\n ```\n docker run -p port_number:9999 gcr.io/android-battery-historian/stable:3.1 --port 9999\n ```\n11. To view your data in Battery Historian, open the Battery Historian in your\n browser. For Mac and Linux, Battery Historian runs at\n `http://localhost:`\u003cvar translate=\"no\"\u003eport_number\u003c/var\u003e. For Windows, Battery\n Historian runs at\n `http://`\u003cvar translate=\"no\"\u003eyour_IP_address\u003c/var\u003e`:`\u003cvar translate=\"no\"\u003eport_number\u003c/var\u003e.\n\n12. Click **Browse** and then choose the bugreport file you created.\n\n13. Click **Submit**. Battery Historian opens a chart created from your\n Batterystats data.\n\nView data with Battery Historian charts\n---------------------------------------\n\nThe Battery Historian chart graphs power-relevant events over time.\n\nEach row shows a colored bar segment when a system component is active and thus\ndrawing current from the battery. The chart doesn't show how much battery is\nused by the component---only whether the app is active. Charts are organized by\ncategory, showing a bar for each category over time, as displayed on the\n*x*-axis of the chart.\n**Figure 3.** Example of a Battery Historian chart.\n\n1. Add additional metrics from the drop-down list.\n2. Hold the pointer over the metric name to see more information about each metric, including a key for the colors used in the chart.\n3. Hold the pointer over a bar to see more detailed information about that metric and the battery stats at a specific point on the timeline.\n\nAdditional Batterystats output\n------------------------------\n\nYou can view additional information from the `batterystats.txt` file in the\nstats section after the Battery Historian chart.\n**Figure 4.** The stats section of Battery Historian.\n\nThe 1 **System Stats** tab includes system-wide\nstatistics, such as cell signal levels and screen brightness. This information\nprovides an overall picture of what's happening with the device. This is\nespecially useful to make sure no external events are affecting your test.\n\nThe 2 **App Stats** tab includes information about\nspecific apps. Sort the list of apps using the 3\n**Sort apps by** drop-down list in the **App Selection** pane. You\ncan select a specific app to view stats for using the\n4 apps drop-down list."]]