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HOW LONG?

The smartphones that run out of battery in just 180 minutes…and the one that lasts for almost 31 hours

The HTC 10 took top place for the longest battery life of a smartphone.

WHEN buying a smartphone or tablet, the battery life is arguably one of the most important things people consider.

Luckily consumer group Which? has taken the guess work out of it by compiling a guide of handsets, tablets, laptops, Bluetooth speakers and wireless headphones that offer the best and worst battery life.

 The HTC 10 offers the longest battery life
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The HTC 10 offers the longest battery life

It turns out some smartphones will die after just 180 minutes of browsing the web - not what you want from a modern phone.

The HTC 10 took top place for the longest battery life of a smartphone.

The £470 phone took a whopping 1, 859 minutes of continuous talk time to run out of battery - that's just one minute short of 31 hours.

Coming in as the worst buy for battery life was the EE Rook, which will run out of juice within three hours of browsing the web.

 The Samsung Galaxy Tab A 9.7 will give you almost 16 hours before it needs charging again
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The Samsung Galaxy Tab A 9.7 will give you almost 16 hours before it needs charging againCredit: Getty Images

Looking for a tablet?

Then the Samsung Galaxy Tab A 9.7 is going to give you the best value for money when it comes to battery life.

On average, the £200 tablet lasted almost 16 hours before it needed charging again.

The 4:3 aspect ratio screen is also marketed as an ideal tablet for bookworms - so it should give you plenty of reading time.

But if you are planning on using your tablet for lengthy tasks then it might be an idea too avoid the £100 Acer Iconia B1-710 as it will only give you about three hours before powering down.

Which? said: "With a price tag of less than £100, we hadn’t expected the Acer Iconia B1-710 to compete with the big boys.

"But the three or so hours of battery life you get is frankly pathetic. Never mind Tolstoy, this tablet will barely get you through today’s newspaper."

 The Toshiba Satellite Click 10, which can also be used as a tablet, will last 12 continuous hours
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The Toshiba Satellite Click 10, which can also be used as a tablet, will last 12 continuous hoursCredit: Amazon

For 11 hours of battery use in a laptop, look for the Toshiba Satellite Click 10.

The laptop, which has a detachable keyboard so it can also act as a tablet, will last 11 hours while watching films and 12 for web browsing - all for £300.

Paling in comparison is the Asus Zenboook Pro UX501, which will set you back more than £1,000, but only last a miserable two-and-a-half hours without being plugged in.

It comes amid concerns that advances in battery power have failed to keep up with advances in technology, such as apps, cameras, video streaming and browsing, that puts strain on the battery's lifespan.

The latest Samsung debacle of 'exploding' Galaxy Note 7 smartphones was put down to a direct result of a systematic battery failure.

The estimated figure of how much the recalled smartphone will cost the manufacturer varies from £2 billion to £18 billion, according to Which?.