There's nothing worse than running out of battery on your phone, and it always seems to happen at the worst of times.

Draining batteries are one of the biggest complaints that smartphone users have, but have you ever wondered why your battery is running out so fast?

If you lose your power quickly it could be because of "vampire apps" on your phone.

Vampire apps are applications that can drain the battery life of your phone without you even noticing that it's happening.

Although all apps on your phone will decrease your battery, these types of apps will drain it faster because they can keep using the internet and location services even when you're not on them.

Some of the worst social media apps for your phone are used by billions of people, making them popular culprits when it comes to poor battery life.

Here's everything you need to know about the apps that drain your battery the most.

Which social media apps kill your iPhone battery?

According to Uswitch, two of the most draining apps on your mobile phone are likely to be Facebook and Facebook Messenger.

These apps put the "biggest drains on our batteries" because they can constantly be running in the background.

This is draining for your iPhone battery even if you've not been using your phone that much.

The Facebook apps runs in the background so that your newsfeed is kept up to date and your location services are improved.

While this can seem useful, you might not need Facebook to be refreshing all the time and if you've noticed your iPhone battery draining quickly, this could be the culprit.

As well as Facebook, some other battery-draining apps include Google and WhatsApp.

How to improve your iPhone battery

Luckily, there's an easy way to stop the Facebook apps from quickly sucking the battery from your iPhone.

Apple users can stop the app from refreshing in the background when you're not on it by following some simple steps.

First, you will need to go to the Settings on your iPhone, then click General.

After that, click on Background App Refresh.

Once you get to that you can choose which background app refreshes you want to switch off.

You can either turn off the background refreshes for all of the apps on your phone, or select individual apps to switch it off for.

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