# Wake locks

Published articles for Wake locks.

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## How to Stop Your Android App from Draining the Battery with Wake Locks

DevFeed: [How to Stop Your Android App from Draining the Battery with Wake Locks](<https://devfeed.tech/articles/how-to-stop-your-android-app-from-draining-the-battery-with-wake-locks-63487.md>)

Original publisher: [Read original article](<https://www.freecodecamp.org/news/how-to-stop-your-android-app-from-draining-the-battery-with-wake-locks/>)

Author: Nikheel Vishwas Savant

Published: 2026-10-01T14:15:11Z

Content type: tutorial

Language: en

Sources: [Free Code Camp](<https://devfeed.tech/sources/freecodecamp-programming-tutorials-python-javascript-git-more.md>)

Topics: [Android](<https://devfeed.tech/topics/android.md>), [Doze Mode](<https://devfeed.tech/topics/doze-mode.md>), [adb](<https://devfeed.tech/topics/adb.md>), [android-permissions](<https://devfeed.tech/topics/android-permissions.md>), [Android Studio](<https://devfeed.tech/topics/android-studio.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [android-vitals](<https://devfeed.tech/tags/android-vitals.md>), [background-work](<https://devfeed.tech/tags/background-work.md>), [battery](<https://devfeed.tech/tags/battery.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [mobile-development](<https://devfeed.tech/tags/mobile-development.md>), [power](<https://devfeed.tech/tags/power.md>), [wake-locks](<https://devfeed.tech/tags/wake-locks.md>)

### AI overview

This tutorial explains how Android wake locks keep the CPU active, why apps leak them through exceptions, early returns, callbacks, and unbalanced reference counts, and how to prevent and detect those leaks. It recommends timeouts, releasing locks in `finally` blocks, using managed background-work APIs where suitable, and checking behavior with Android debugging tools and tests.

### Source excerpt

A wake lock is one of the simplest APIs in Android and one of the easiest to misuse. Acquiring one takes a single line of code. Forgetting to release it can keep a phone's CPU awake for hours, drain t