June Wan/

Everyone wants their iPhone's battery to last longer, even if they've just bought a newiPhone 14 Pro or Pro Max .

Apple claims that the iPhone 14 Pro and Pro Max get "up to" 20 and 25 hours of video stream, respectively, but even that's not enough for some new owners.

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The iPhone 14 Pro and Pro Max features an always-on display, and it seems that people believe that this puts a significant dent in battery life. That, or they've been reading one of the many "battery saving tips" posts on the internet that highlight this new feature as a big battery drain.

Well, is it?

Also: Apple's worst product has now become one of its best

There's only one way to find out, and that's to do some real-world testing.

There are a few different ways to do real-world testing, but here I decided to make things simple.

For this test I put the iPhone into Airplane Mode and then left it with the display on (and doing nothing) for a couple of hours, made a note of the drop in battery level, and then repeated the test with the display off.

It's quick and simple, and if there was going to be any significant improvement in battery life, it would show up in a couple of hours.

Bottom line, the always-on display makes little difference.

Just to be sure, I repeated the experiment, but this time I ran it for four hours, and again, the difference was negligible.

Also: How to take great macro photos with the iPhone 14 Pro and Pro Max

The always-on display is clearly a feature that's been optimized for the OLED ProMotion display, and turning it off buys you very little extra battery life.

That said, if you put your iPhone into Low Power Mode (tap onSettings > Batteryand toggleLow Power Mode), the always-on display is one of the features disabled.

You can tell if the iPhone is in Low Power Mode because the battery icon turns yellow

Adrian Kingsley-Hughes/

So, if you're trying to get more battery life (maybe you're running out, or need to get through an especially long day), turning off the display is not going to help you.

What should you do?

Here are a couple of suggestions that will get you hours of extra battery life:

• Turn on Low Power Mode: You do lose some features, but this will dramatically extend your battery life
• Carry a power bank: I suggest something small like theAnker 622 Magnetic Battery which uses MagSafe so you don't need to carry a separate charging cable. See our review here. 

Anker 622 MagSafe wireless charger

$57.7 at Amazon

See also

How to better organize text messages on your iPhone, thanks to iOS 17How to transfer data from Android to an iPhone: 2 simple and fast waysHow to turn on 80% charging limit on the iPhone 15 to save battery healthHow to leave a FaceTime voice or video message when your call goes unanswered

• How to better organize text messages on your iPhone, thanks to iOS 17
• How to transfer data from Android to an iPhone: 2 simple and fast ways
• How to turn on 80% charging limit on the iPhone 15 to save battery health
• How to leave a FaceTime voice or video message when your call goes unanswered