This Unexpected Tip to Extend Battery Life on iPhone Actually Works… Really!

Are you looking for a fascinating way to make an iPhone battery last a bit longer? You might be digging around in the devices’ display settings then.

If you have an iPhone with an OLED screen, you may have a new reason to enable Dark Mode on the iPhone; prolonged battery life. 

According to a test conducted by PhoneBuff on OLED screen equipped iPhones, battery life is notably better when Dark Mode is enabled compared to when using Light Mode.

The chart below, courtesy of the PhoneBuff video, indicates the difference in battery life between the two. The full video showing the test of dark mode vs light mode impact on battery life is embedded further below if you’re curious enough to watch it.

iPhone models with OLED display that may get a battery life benefit from using Dark Mode include iPhone 11 Pro, iPhone 11 Pro Max, iPhone XS Max, iPhone XS, and iPhone X.

Other iPhones like the iPhone 11, iPhone XR, iPhone Plus, iPhone 8, iPhone 7, and prior models, use LCD displays, and thus presumably will receive no benefit to battery life by using Dark Mode.

This tip is probably only valid for OLED display iPhone models just based on how an OLED vs LCD screen works, so if you’re thinking of using Dark Mode on iPad or going dark on Mac to prolong battery life then it likely won’t have the same effect since iPads and Macs use an LCD display. Of course, if you discover otherwise, or run a test to show contrary information, then share it with us in the comments below!

Regardless of what iPhone you have, you can get even more mileage out of an iPhone battery by enabling Low Power Mode on iPhone, which combined with Dark Mode on an LED display device should be extra effective at making the battery last as long as possible.

The full video of the battery life test is embedded below, courtesy of PhoneBuff. Check it out if you’re interested in seeing how the test was run and the full results:

Before you make a buying decision based purely on iPhone having an LCD vs OLED display, you might want to be aware that some people’s eyes are sensitive to a feature of OLED displays called PWM which can cause heavy eye strain.

Have you ever noticed a difference in battery life when using dark mode versus light mode? Will you be enabling Dark Mode on iPhone to attempt to prolong your devices battery life? Share your thoughts in the comments below.


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