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Apps that zap your battery too fast

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Smartphone apps inform, entertain, educate and make life a lot easier -- until your battery dies.

Teacher and mom Jeri-Sue Dean was getting more frustrated every week.

"I'm a teacher and we're getting into 21st century learning and you have to keep up," said Dean.

Dean uses her iPhone for news, weather, music, games and more. But she said she often has to recharge mid-day.

What's Draining Batteries so Fast?

There are some obvious culprits, according to tech expert Rick McCloskey with One World Labs.

McCloskey said apps that use GPS, programs that constantly update and free games that have scrolling advertisements are battery drains.

One way to figure out what apps are zapping your phone is a free program called Carat , developed by researchers at University of California, Berkeley.

Carat identifies energy hogs and energy bugs on your individual device.

"An energy hog is an app that, across most devices, seems to use more energy than a typical app," said Adam Oliner, one of Carat's creators. "An energy bug is an instance of an app running on a particular device that uses far more energy on that device than on most other devices."

Once Carat identifies these, it offers recommendations to help a user get more out of his or her battery life.

CLICK HERE for Carat for Apple devices.

CLICK HERE for Carat for Android.   

Most Common Draining Apps

The most common culprits: email and Facebook apps.

McCloskey found out he had apps running in the background even when they weren't in use, like Yahoo news and a music app.

Once you identify what's zapping your battery, the solution can be simple: If you don't use it, lose it. The same goes for GPS, Wi-Fi and Bluetooth. Turn these off when you don't need them.

For things like email, Facebook and Twitter, check out your settings.

"Email is probably the easiest example. You can go in there and it'll say: 'How often do you want me to check your email... every one minute, five minutes, 10 minutes, once and hour?' So, setting those types of settings will cut down on battery usage," said McCloskey.

McCloskey said a few changes can really help your battery-life. It's a matter of prioritizing.

That way you save your battery, and you don't waste your money.

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