Digital transformation

Saving smartphone battery: Simple tips that few people know.

Phan Van Hoa August 29, 2025 11:31

In an age where smartphone notifications can appear hundreds of times a day, a seemingly small action like placing the device face down on a table can significantly save battery life.

Many people don't realize it, but every time your phone receives a notification and the screen lights up, it consumes energy. For smartphone users who frequently participate in group chats and have notifications enabled from multiple social media apps, email, or text messages, this can happen dozens, even hundreds of times a day.

According to a 2023 study, some teenagers may receive hundreds of notifications a day. And while a single notification may not have much of an impact, the cumulative effect of hundreds of screen flashes can quickly drain a phone's battery.

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A seemingly small action like placing your phone face down on a table can significantly benefit battery life. Photo: Internet.

CNET once pointed out that a small action like placing your phone face down on a table can be the deciding factor in whether your device will last until the end of the day. When the device is placed face down, the screen won't light up when there's a new notification, thanks to a combination of the proximity sensor and the ambient light sensor built into the device.

These sensors work very similarly to the mechanism that turns off your phone screen when you bring it to your ear to answer a call. When they detect a nearby object (in this case, a tabletop), the proximity sensor will command the screen to turn off to save energy and avoid unwanted touch activation.

This is especially useful in a work environment or during family meals, when you don't want to be distracted by screen light or constant notifications. Even if the phone is still vibrating or making sounds, keeping the screen off saves a significant amount of battery power, especially for devices with large, bright screens.

Besides the battery benefits, this little trick also indirectly helps you increase your concentration. In the digital age, where notifications are a constant source of distraction, placing your phone face down on the table is also a way to "temporarily switch off" the digital world so you can work more efficiently or enjoy some offline time.

Some tech experts even recommend that users proactively turn off unnecessary notifications, combined with placing their phones face down when they need to concentrate or rest, to extend battery life and improve mental health.

In short, with a simple action like placing your phone face down on a table, you can minimize unnecessary screen brightness, saving battery life and reducing distractions throughout the day.

In today's fast-paced and constantly connected tech world, small changes to your device usage habits can make a big difference, both to your phone's battery life and your quality of life.

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Saving smartphone battery: Simple tips that few people know.
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