According to Marcus, iPhone customers ought to go to the gadget's 'Settings' display, click on 'Accessibility' after which 'Display & Text Size'.

From there customers scroll down to search out the 'Reduce White Point' toggle, which reduces the brilliant colors on the telephone's display.

It is feasible to then dial down the colors on the display to save lots of extra battery.

The display develop into noticeably darker and he went on to cut back it to its lowest brightness setting.

By utilizing the setting, not solely can customers save their battery however they'll additionally wind down higher within the night, permitting their eyes to regulate to the darkness.

On social media, followers have been impressed with Marcus' hack - although others weren't satisfied.

One fan raged: "I did it and now I can't see anything."

Another stated: "What's the point? Then my phone is useless. Just like telling me not to use my phone, no battery will be wasted as well."

Meanwhile, a 3rd continued: "Well, I mean now I know how to use my phone at night if it's still too bright for my eyes."

Others described how the tip helped them.

However, a fourth wrote: "This adjusts the colours of your screen, not the brightness.

"Therefore, it has no influence on battery life."