Google is aiming to give your phones and tablets a little more juice to make it through the day without dying.

At its annual I/O developers conference Thursday, the company announced a new power-conservation feature in its upcoming mobile operating system Android M. Called “Doze,” the new feature uses motion sensors to detect when a device hasn’t been moved for an extended period. Android will then automatically shut down processes for certain power-hogging apps, which should significantly extend the device’s battery life.

When testing the feature, Google said a Nexus 9 tablet running Doze on Android M had a battery life twice as long as the same device using the older Android L operating system.

The new feature won’t turn your phone into a total paperweight. Users will still be alerted to alarms and high-priority messages even when the phone or tablet is dozing.

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