How to improve your iPhone's battery life: Delete the Facebook app

According to a new report, you could see a boost of 15 percent or more just by switching to Facebook in your browser.

Not happy with your iPhone's battery life? Try this.

Tap Settings > Battery, then wait for the Battery Usage section to load. Now check to see which app is consuming the highest percentage of your phone's juice. If you have Facebook installed, chances are good it's near the top.

On my iPhone, for example, Facebook gobbled a whopping 18 percent of my battery over the past 24 hours, and 16 percent in the last seven days. (Only messaging app GroupMe consumed more.) It stands to reason, then, that deleting the app would afford a considerable boost to battery life.

How much of your battery is the Facebook app eating?

Screenshot by Rick Broida/CNET

Samuel Gibbs, a writer for The Guardian, recently supplied some anecdotal proof: He discovered that deleting the Facebook app can improve iPhone battery life by up to 15 percent.

His result after a week of using the Facebook app and a second week without it:

On average I had 15% more battery left by 10.30pm each day. I had also saved space, because at the point I had deleted the Facebook app it had consumed around 500MB in total combining the 111MB of the app itself and its cache on the iPhone.

Of course, that's just one instance. Would the same hold true for other Facebook app users? Gibbs expanded his testing:

To make sure that this wasn't an isolated incident, I also recruited several other Facebook-using iPhone owners to conduct a similar test. They all found similar results, with increased battery life when using Facebook in Safari having uninstalled the main Facebook iOS app.

As noted in that last sentence, deleting the Facebook app doesn't mean forgoing Facebook: You can sign into the service using your mobile browser, which should have almost zero battery and storage impact. Granted, you'll have to live without a few app-specific amenities, like the omnipresent toolbar (in the browser, it disappears when you scroll away) and auto-playing embedded videos.

On the other hand, you won't need Facebook's irksome Messenger app just to send messages when using it from your browser. And you'll almost certainly see an improvement in battery life. Worth the trade-off?

There's no harm in trying. Ditch the app for a week (or even just a day) and see how it goes. You may find that browser-based Facebook affords all the feed goodness you need.

If you've already made the move, hit the comments and let your fellow iPhone owners know how it went!

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