When you’re on a flight and you want a phone to go to sleep, you’re more likely to just flick the back button and hit the “sleep” button than you are to try and manually turn it off.

A recent study from the University of Melbourne and the University on Earth, however, has some insights into the way you can disable your phone’s battery while you’re out in the world. 

It turns out you can actually do both, in the same app.

The researchers used a combination of two apps called PowerShift and BatteryManager to control a smartphone’s battery in the absence of an external battery, while using a separate app called Smart Battery to control it when you’re connected to it.

To do this, the researchers first needed to set up the two apps and their respective triggers, and then they used their device’s accelerometer to determine when the phones were charging, and when it was fully charged.

They found that when the device was fully recharged, the iPhone battery tended to drain faster when the power was switched off, while when it wasn’t fully recharging, the battery tended not to drain as fast.

“The main takeaway from this study is that you can do both of these actions, but we’re also seeing some surprising results,” said Professor Michael Cunliffe, from the Department of Electrical Engineering at the University.

“You can have a device that’s powered off when it’s not charging, which can drain more quickly than it’s fully re-charged.”

In other words, if you’re not in the midst of a power outage, the phone will actually conserve more battery while it’s in standby.

And it’s more efficient than just powering the phone off, because it doesn’t need to wait for the phone to re-charge again before it can be used again.

It’s a good idea to always keep your phone in a place where it’s easy to get it charged, but this study shows that even when your phone is fully charged, it will actually be faster to just turn it on and off while in standby mode.

The study, published in the Journal of Consumer Psychology, was a part of a project with the Australian National University.

Researchers from the university’s School of Computing and the School of Engineering and Applied Science, along with a number of students from the School and the Department, used a smartphone app called Power Shift to control the battery of the iPhone, while also using a battery management app called Battery Manager to control its charging rate.

The team found that switching on the iPhone when the phone was charging increased its battery usage by 15 per cent while the phone wasn’t charging.

But switching off when the battery was fully-charged reduced the phone’s energy consumption by 12 per cent.

“If you can reduce the battery usage of the phone while it is charging, that’s one of the best things you can achieve with the phone,” Professor CunLiffe said.

“But, what about when you have a power problem?

You have to turn it back on to recharge, but if you are not using the battery, it can slow down the phone.”

In addition to these findings, the team found the iPhone’s battery can drain faster in standby than in the presence of a external battery.

When the phone is in a position where it is easily accessible and where you can’t turn it completely off, the app does a better job of conserving battery energy.

But when the iPhone is in the middle of a busy office environment, the data suggests it can use more energy when it is fully-recharged.

When you are sitting at a desk or working at a computer, the energy savings are less impressive, but the power consumption is much more effective.

It may be time to change your mobile phone’s batteries, Professor Cuntles say.

“There’s no point in using your phone when it has no battery, but in some circumstances it’s better to switch on your phone if it’s been charged more than 100 per cent,” he said.

“If it’s completely powered off, you don’t need the battery at all.

But if it has battery and it is full, you can get a lot of power out of it.”

The study also shows that turning off your phone while charging will save battery energy, but will take longer to do so.

“Turning it off while it charges takes a while, so you may be getting more power out from it,” Professor Michael said.

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