If you leave your MacBook, MacBook Pro, or MacBook Air plugged in all the time—no matter the vintage—the battery suffers wear for being charged to full. Over time, the maximum charged capacity diminishes and you lose many minutes—even hours—of usable time. It is just a characteristic of the lithium-ion batteries in laptops and nearly all modern electronics.
Here is a quick list of the best practices for managing your MacBook's battery.
Reinstalling OS X System Software on a Mac with Recovery Mode. It's a good idea to back up the Mac with Time Machine before beginning this process. Even though this method aims to only reinstall OS X system software on the Mac, things could still go wrong and it's always better to lean on the side of caution and make file backups beforehand. It boggles the mind that a simple feature like the Always on Top for windows is still not part of the core Mac OS system. After all, in a way, the Mac OS is the premium version of the open. Afloat is a simple application that adds the 'Always on top' solution to macOS. It makes use of SIMBL (short for SIMple Bundle Loader) which is an application enhancement loader for Mac OS X that allows third-party developers to modify and add functionality to applications developed with the Cocoa environment without access to the source code.
There is a free app called Key Codes in the Mac App Store that as far as I can tell stays on top of all other windows. Other than menu items it stays atop all other apps including the.
- Routinely unplug your laptop, as frequently as daily, and let it drop its power down to the 30 to 40 percent range.
- Don't fully discharge your battery regularly—that is, don't let it run down to zero. As Battery University (not a degree-granting institution) notes, 'If at all possible, avoid full discharges and charge the battery more often between uses.…There is no memory and the battery does not need periodic full discharge cycles to prolong life.'
- With modern Apple laptops, in macOS Catalina's 10.5.5 release you can make sure that Battery Health Management is enabled in the Energy Saver preference pane's Battery tab by clicking Battery Health.
- In macOS 11 Big Sir, recent Mac laptops will have more modern options enabled by default.
If you'd like more details, read on.
The lowdown on topping up batteries
Lithium-ion batteries are a far sight better than their nickel-based predecessors. Even the later nickel-metal hydride (NiMH) batteries required a regular full discharge—taking the battery down to no stored capacity—to keep them in good shape. Li-ion batteries are excellent at charging and discharging in varying amounts over time and losing relatively little charge when idle for long periods.
But the way in which they store energy requires careful charging past about 80 percent capacity. After that point, it's easy for the batteries to overheat, which can damage them or, in the worst case, cause bulging or even fires. That's why battery circuitry on all devices throttles charging speed from 80 to 100 percent.
If you ever wondered why your devices charge very fast and then very slowly, that's why. And 100 percent isn't really '100 percent.' It's the maximum that a battery's controlling circuitry or connected operating system believes it can safely hold when 'full.'
Even with the most careful algorithms to get to 100 percent, lithium-ion batteries simply age faster when they're topped up all the time. Battery University explains it succinctly:
Lithium-ion suffers from stress when exposed to heat, so does keeping a cell at a high charge voltage…Exposing the battery to high temperature and dwelling in a full state-of-charge for an extended time can be more stressful than cycling.
Apple recognized this as a problem with iPhones in particular, and built into iOS an awareness of a battery's available capacity, which led it to throttle certain tasks when the battery couldn't deliver enough juice without the iPhone shutting down. (See Settings > Battery. Three rooms gameplay prototype mac os. ) Much has been written about Apple's lack of disclosure, apology for the issue, and discounted battery-replacement program for older phones.
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This minor crisis also led the company to add more detail about battery capacity and charge, and shape charging more intelligently. Apple no longer always ensures an iPhone and iPad charges to 100 percent when plugged in, but observes your charging patterns and adapts to charge only as necessary to give you the most stored juice you need at any given time.
That leads to greater battery life. My iPhone 11 Pro from last October shows 99 percent battery capacity, which is quite a bit higher than previous phones I've owned over that period of time. (The included one-year warranty on Apple's battery-powered devices allow for a no-charge replacement if capacity drops below 80 percent in that first year. AppleCare+ extends that replacement for as long as you're paying for the warranty.)
Apple brought a charging algorithm for its laptops that sport Thunderbolt 3 to macOS Catalina in the 10.15.5 update that isn't quite the same, but it is designed to take the edge of a battery as it ages. In the Energy Saver preference pane's Battery tab, click Battery Health. Battery Health Management should be checked; if not, you almost certainly want to enable it. (Mac laptops with Thunderbolt 3 currently include the MacBook Pro models since 2016 and MacBook Air models since 2018.)
With the preview of Big Sur, Apple promises the same sort of charging algorithm in iPhones and iPads for recent Mac laptops as well. It's a painless and management-free way to get more life out of your laptop battery.
This Mac 911 article is in response to a question submitted by Macworld reader Collin.
Correction: This article initially didn't note which Mac laptops offered the Battery Health option in Catalina and the upcoming Big Sur.
Ask Mac 911
We've compiled a list of the questions we get asked most frequently along with answers and links to columns: read our super FAQ to see if your question is covered. If not, we're always looking for new problems to solve! Email yours to mac911@macworld.comincluding screen captures as appropriate, and whether you want your full name used. Not every question will be answered, we don't reply to email, and we cannot provide direct troubleshooting advice.
Mac keeps restarting over and over? Mac keeps restarting on its own? MacBook Pro keeps restarting at boot? No worry. After reading this article, you can not only know why your Mac keeps restarting (Part 1), how to fix the 'Mac keeps restarting' issue (Part 2) but also how to avoid spontaneous restarts on your Mac (Part 3). If you have encountered the similar problem on your iPhone X, iPhone 8 or iPhone 8 Plus in iOS 11, go to the article about how to fix iPhone X/8/8 Plus keeps restarting to learn how to solve the problem.
- Notice
- Looking for the free software to transfer photos from iPhone to computer or from computer to your iPhone? Read the article to get what you want.
Part 1: Why Mac keeps restarting
In most of the cases, the main contributor to the 'Mac/MacBook Pro keeps restarting' issue is 'kernel panic'. The 'kernel' refers to the operating system of your Mac. Why does kernel panic lead to abnormal restarts? That's because the operating system has detected an issue on your Mac and the restart must be performed to fix the issue, which is usually caused by the faulty software or a problematic hardware. How to decide whether kernel panic is occurring? Generally, a message will pop up on your Mac screen showing you 'Your Computer restarted because of a problem'. If you are in the very situation, don't hesitate to get possible solutions in Part 2.
Part 2: How to fix Mac/MacBook Pro Keeps Restarting
If your Mac or MacBook Pro keeps restarting over and over, you first need to know where the problem is. Is the software installed on your Mac the cause of the issue or the hardware on your Mac to connected to your Mac the cause of the issue? If the kernel panic is related to hardware, follow the first two tips to learn what to do. While if the problem is related to software installed on your Mac, follow the last two tips instead. (Other solutions to common Mac/iDevice problems are also covered, go to iOS & Mac Topics to find what you need if you want.)
For hardware related kernel panic:
The kernel panic could be caused by a peripheral device or a combination of peripheral devices that has been connected to your Mac or the internal RAM or third-party hardware. Thus hardware troubleshooting is inevitable to solve the 'Mac keeps restarting' issue.
Tip 1: Check the peripheral devices connected to your Mac
Step 1: Shut down your Mac and disconnect all the peripheral devices. (Keep the display, keyboard, and mouse that are from App connected only. )
Step 2: Start your Mac and use it as usual.
Step 3: Troubleshoot hardware.
- If your Mac works properly after you use it for a period of time and no kernel panic occurs, you must know that there is something wrong with the peripheral device that previously connected to your Mac. To check which peripheral device is the 'culprit', connect one peripheral device to your Mac at a time and test. If a single peripheral device doesn't cause the 'Mac keeps restarting' issue, you can try to connect two or more peripheral devices to your Mac and test.
- While if a kernel panic occurs later, it must be something wrong with the internal RAM or third-party hardware. If so, follow tip 2 to check the hardware.
Tip 2: Check the internal RAM and third-party hardware on your Mac
Step 1: Shut down your Mac.
Latest Mac Os
Step 2: Remove the third-party RAM and internal hardware from your Mac. Reseat your Apple RAM if you get one. If not, reseat the RAM you have instead.
Mac Os On Virtualbox
Step 3: Start your Mac and use it as usual.
Step 4: Do troubleshooting.
- If the 'Mac keeps restarting' problem doesn't happen after you use your Mac for a period of time, you know that the third-party RAM or third-party internal hardware should to replaced to avoid the kernel panic.
- If your Mac keeps restarting again, you need to go to the Apple Store nearby with your Mac to seek help from Apple.
For software related kernel panic:
Tip 3: Reinstall operating system on your Mac
Step 1: Use macOS Recovery to reinstall macOS.
- Hold and press the key combination (Command + R) on your Mac keyboard immediately after you press the power button to turn on your Mac until you see the Apple logo or a spinning globe.
- Choose Reinstall macOS in the window and click Continue.
Step 2: If you have reinstalled macOS successfully, go to App Store >Updates to install all the updates on your Mac.
Step 3: Before you reinstall the third-party software, download and install all the third-party software updates.
Space exploration (ivanzamoraarias) mac os. Step 4: Do troubleshooting.
- If the kernel panic doesn't occur, you have solved the issue successfully.
- While if your Mac keeps restarting again, follow tip 4 introduced below.
Tip 4: Fix 'Mac keeps restarting' issue related to software
Step 1: Use macOS Recovery to start your Mac. (Refer to step 1 in Tip 3.)
Mac Os Keep Window On Top
Step 2: Use Disk Utility to back up your disk image to an external drive with enough free space.
Step 3: Wipe the internal drive via Disk Utility.
Step 4: Install OS X and start your Mac from the internal drive.
Step 5: Go to App Store >Updates to install all updates on your Mac.
Step 6: Reinstall the third-party Apps on your Mac and copy the user data from the backup you have just created.
Part 3: How to prevent Mac from restarting
Afterward (far away times) mac os. Unexpected restarts of Mac could be quite annoying, Thus it's necessary to learn how to prevent the problem from happening. The most effective way to avoid kernel panic is to always update your software to the latest version. You just need to go to App Store >Updates to make it. Easy, right? Hope you won't meet the 'Mac keeps restarting' issue again. For other problems like Mac running slow, Mac stuck on the login screen, Mac won't turn on and more, you can also find the fixes in the related article.
