Apple Warns You When Your Display is Using Significant Energy in Latest macOS Beta

Apple advertises that the latest MacBook Pro models provide up to 10 hours of battery life on a single charge for web browsing and iTunes movie playback, but a user's mileage may vary based upon factors such as display brightness, which apps are running, and external devices connected.

For this reason, Apple lists apps using a significant amount of energy under the battery menu in the macOS menu bar. The feature enables users to monitor which apps are drawing a lot of power and impacting battery life, whether it be the built-in Spotlight tool or a power-hungry web browser with several tabs open.

mac-apps-using-significant-energy
Now, Apple has gone one step further and expanded the feature to include display brightness. On the latest macOS Sierra beta, when a Mac's display is set above 75% brightness—or at least 13 out of 16 notches—a new item called "Display Brightness" is listed under the battery menu.

Clicking on "Display Brightness" lowers the Mac's brightness to 75%. Likewise, when we updated a new MacBook Pro to the fourth beta of macOS Sierra 10.12.3, the display's brightness was automatically lowered to 75%. This is the same brightness level as Apple used during its latest MacBook Pro battery tests.

mac-significant-energy-display-brightness

New: "Display Brightness" is now listed and "Apps" has been dropped from the title

Battery life on the latest MacBook Pro models has been a controversial topic since the notebooks launched in October. A subset of users have reported getting as little as three to six hours of battery life on a single charge, sometimes even with only basic web browsing and other non-intensive tasks.

Apple has consistently stood by its advertised battery life for the latest MacBook Pro. It did, however, remove the "time remaining" battery life indicator on macOS Sierra 10.12.2, noting the estimates "couldn't accurately keep up with what users were doing" because of the "dynamic ways" people use their Macs.

Consumer Reports initially failed to recommend the latest MacBook Pro because of battery life inconsistencies, but it later worked with Apple and learned that a Safari bug triggered by its own testing configuration was to blame for the mixed results. Apple fixed that bug in macOS 10.12.3, and Consumer Reports has since reversed course and now recommends the latest MacBook Pro after retesting.

The new feature is currently limited to beta testers. It will be widely available when macOS 10.12.3 is officially released over the coming days.

Related Roundup: MacBook Pro
Buyer's Guide: MacBook Pro (Neutral)
Related Forums: MacBook Pro, macOS Sierra

Popular Stories

iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro Coming Soon With These 14 New Features

Friday July 4, 2025 1:05 pm PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are just over two months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models. Latest Rumors These rumors surfaced in June and July:Apple logo repositioned: Apple's logo may have a lower position on the back of the iPhone 17 Pro models, compared to previous...
iphone 16 pro models 1

Here's How the iPhone 17 Pro Max Will Compare to the iPhone 17 Pro

Saturday July 5, 2025 1:00 pm PDT by
Apple should unveil the iPhone 17 series in September, and there might be one bigger difference between the Pro and Pro Max models this year. As always, the Pro Max model will be larger than the Pro model:iPhone 17 Pro: 6.3-inch display iPhone 17 Pro Max: 6.9-inch displayGiven the Pro Max is physically larger than the Pro, it has more internal space, allowing for a larger battery and...
iPhone Car Key Kia

Here's Which Vehicles Offer iPhone Car Keys

Sunday July 6, 2025 3:03 pm PDT by
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, including Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, Volvo, and a handful of others, and it is set to expand further. Apple has a web page with a list of vehicle models that ...
imac video apple feature

Apple Launching These 15+ Products Later This Year

Sunday July 6, 2025 8:05 am PDT by
The calendar has turned to July, meaning that 2025 is now more than half over. And while the summer months are often quiet for Apple, the company still has more than a dozen products coming later this year, according to rumors. Below, we have outlined at least 15 new Apple products that are expected to launch later this year, along with key rumored features for each. iPhone 17 Series iPho...
iOS 26 Feature

Everything New in iOS 26 Beta 3

Monday July 7, 2025 1:20 pm PDT by
Apple is continuing to refine and update iOS 26, and beta three features smaller changes than we saw in beta 2, plus further tweaks to the Liquid Glass design. Apple is gearing up for the next phase of beta testing, and the company has promised that a public beta is set to come out in July. Transparency In some apps like Apple Music, Podcasts, and the App Store, Apple has toned down the...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro to Reverse iPhone X Design Decision

Monday July 7, 2025 9:46 am PDT by
Since the iPhone X in 2017, all of Apple's highest-end iPhone models have featured either stainless steel or titanium frames, but it has now been rumored that this design decision will be coming to an end with the iPhone 17 Pro models later this year. In a post on Chinese social media platform Weibo today, the account Instant Digital said that the iPhone 17 Pro models will have an aluminum...
iphone 17 pro render majin bu

New iPhone 17 Pro Renders Highlight Apple Logo and MagSafe Design Changes

Sunday July 6, 2025 8:43 pm PDT by
New renders today provide the best look yet relocated Apple logo and redesigned MagSafe magnet array of the iPhone 17 Pro and iPhone 17 Pro Max. Image via Majin Bu. Several of the design changes coming to the iPhone 17 Pro model have been rumored for some time, such as the elongated camera bump that spans the full width of the device, with the LiDAR Scanner and flash moving to the right side. ...
Prime Day 25 Feature Warm Triad

The Best Early Prime Day Deals on Apple Products

Saturday July 5, 2025 7:22 am PDT by
Amazon is soon to be back with its annual summertime Prime Day event, lasting for four days from July 8-11, the longest Prime Day yet. As it does every year, Prime Day offers shoppers a huge selection of deals across Amazon's storefront, and there are already many deals you can get on sale ahead of the event. Note: MacRumors is an affiliate partner with Amazon. When you click a link and make a ...
airpods pro 2

AirPods Pro 3 to Help Maintain Apple's Place in Earbud Market Amid Increasing Low-Cost Competition

Thursday July 3, 2025 7:25 am PDT by
Apple's position as the dominant force in the global true wireless stereo (TWS) earbud market is expected to continue through 2025, according to Counterpoint Research. The forecast outlines a 3% year-over-year increase in global TWS unit shipments for 2025, signaling a transition from rapid growth to a more mature phase for the category. While Apple is set to remain the leading brand by...

Top Rated Comments

McTaste Avatar
111 months ago
Battery life of ten hours if you cripple performance and dim the screen.

Battery life of three hours under normal usage.
Score: 59 Votes (Like | Disagree)
jerry16 Avatar
111 months ago
Leave the MBP a few mm thicker and battery life wouldn't even be a conversation. Foolish obsession with thin.
Score: 59 Votes (Like | Disagree)
gpat Avatar
111 months ago
It takes a lot of courage to tell me I chose an excessive screen brightness.
Score: 27 Votes (Like | Disagree)
ryanwarsaw Avatar
111 months ago
I will refrain from saying anything. The normal comments should be dumb enough.
Score: 21 Votes (Like | Disagree)
MNWildFan Avatar
111 months ago
Interesting... Now if Apple could bring back the time remaining section back to the battery menu, that would be great. Yes, I know it can be seen in the activity monitor, but it's much more convenient to have it right in the menu bar.
Score: 16 Votes (Like | Disagree)
ArtOfWarfare Avatar
111 months ago
I don't like setting my display to less than 100% bright most of the time. I think most people feel the same way. Using 100% just seems good.

Apple should rename 100% as 130% and scale accordingly. It sends the message that, though your screen can go that bright, you shouldn't set it that bright unless you really need to.
Score: 15 Votes (Like | Disagree)