Why is My Mac Slow on Low Battery (Retrieve the Speed)

Published on: May 21, 2024
Written by Ian Carter / Fact-checked by Baten Khalil

When your Mac’s battery is low, it can seem slow. Your Mac starts to conserve power when the battery gets low. So, things that use much power, like animations and graphics, may not work as smoothly as they normally would.

why is my mac slow on low battery

If you’re finding that your Mac is slow on low battery, you can do a few things to help speed it up again.

If your Mac is running slowly on a low battery, there are a few things you can do to try and speed it up. One thing you can try is closing any unnecessary apps that may be running in the background. You can also try turning off any visual effects or animations that may be running.

If your Mac is still slow, you may need to reset your PRAM or SMC. You can reboot your device without a CMOS battery.

MacBook Battery Throttling

If you own a MacBook, you may have noticed that your battery life isn’t what it used to be. In fact, it may seem like your battery is draining faster than ever before. The good news is that there’s a reason for this, not because your battery is dying.

The bad news is that the reason is something called “battery throttling.

What is Battery Throttling?

Battery throttling is when the processor in your MacBook slows down to preserve battery life. This can happen when your MacBook runs low on power, or the processor gets too hot.

Throttling can also happen if you use certain apps that are known to be power-hungry. The good news is that battery throttling doesn’t mean your MacBook’s battery is dying. In fact, it’s actually a pretty normal thing for laptops to do.

The bad news is that it can be frustrating when your laptop suddenly starts running slower than usual.

There are a few things you can do to try and prevent battery throttling from happening:

Number oneMake sure you’re using the latest version of macOS. Apple often releases updates that include improvements for managing power consumption.
Number twoAvoid using demanding apps whenever possible.
Number threeKeep an eye on your Processor Temperature sensor in Activity Monitor (located in Utilities). If this gets too high, it could trigger throttling.
Number fourConsider resetting your MacBook’s SMC (System Management Controller). This can help improve overall performance and stability.
Things you can do to prevent battery throttling


If you’re noticing reduced performance and battery life on your MacBook, you’re experiencing some degree of battery throttling. Luckily, you can do a few things to try and mitigate the effects.

  • Keep updated with the latest macOS version.
  • Avoid using resource-intensive apps, monitor your processor temperature,
  • And reset the SMC if necessary

You can help keep battery throttling under control with a little care and attention!

MacBook Slow After New Battery

If your MacBook is running slowly after you’ve replaced the battery, there are a few possible explanations. It could be that your computer is simply adjusting to the new battery and needs some time to optimize its performance. Additionally, if your old battery was damaged or degraded, that could also be contributing to slower overall performance.

There are a few things you can try to help improve performance on your MacBook:

Use the latest software It could be that your computer is simply adjusting to the new battery and needs some time to optimize its performance. Additionally, if your old battery was damaged or degraded, that could also be contributing to slower overall performance.
Close unused appsThere are a few things you can try to help improve performance on your MacBook: – Make sure your computer is up to date with the latest software updates from Apple. This can help optimize performance and fix any underlying bugs causing slowdowns.
Check apple page Close any unused apps and programs running in the background. Having too many things open can drag down performance on any computer, so it’s best to keep things tidy. – Check out Apple’s support page for more detailed troubleshooting tips for batteries and slow performance.
Things you can try to help improve performance on your MacBook:

Can a Bad Battery Slow Down a MacBook?

If your MacBook runs slowly, it could be due to a bad battery. When a battery starts to go bad, it can cause all sorts of problems with your computer, including making it run slower than normal. If you suspect that your battery may be the problem, here are some things to check:

First, take a look at your Battery Health in System Preferences. If it’s showing that your battery is depleted or has a low cycle count, then it’s likely time for a replacement. You can also try resetting the SMC (System Management Controller) on your MacBook, which can sometimes help improve performance.

If you’re still seeing slow performance after checking these things, then it’s possible that there’s another issue causing the problem. But if you think your battery might be to blame, get it replaced as soon as possible to avoid any further issues!

MacBook Pro Slow Without Battery

Are you finding that your Macbook Pro is slow without the battery? If so, there are a few things that could be causing this:

  • One possibility is that your Macbook Pro is set to “Battery Saver” mode. To check this, go to System Preferences > Energy Saver. If Battery Saver mode is enabled, your Macbook Pro will run slower in order to conserve power.
  • Another possibility is that you have too many programs running at startup.
  • To manage your startup items, go to System Preferences > Users & Groups > Login Items. Here, you can add or remove programs from your startup list. Removing unnecessary programs can help speed up your Macbook Pro.

If neither of these solutions solves the problem, it’s possible that your battery needs to be replaced. You can take your Macbook Pro to an Apple Store or an authorized service provider for a diagnosis and potential replacement.

How to Increase Mac Processor Speed

how to increase mac processor speed

One of the most common questions is how to increase Mac processor speed. While there are many ways to do this:

Use App like CleanMyMac

One of the best and easiest ways is to use an app like CleanMyMac X. This app will help you remove all sorts of junk files from your system, including temp files, log files, and more. It also includes a powerful tool for uninstalling apps you no longer need.

Make Space on Your Hard Drive

Another great way to increase Mac processor speed is to ensure you have plenty of free space on your hard drive. If your hard drive is crammed full of stuff, it can slow down your processor significantly. So take some time to clean up your hard drive and get rid of any unnecessary files.

Upgrade to a Faster Model

Finally, if you really want to give your processor a boost, consider upgrading to a faster model. Sometimes, even just adding more RAM can make a big difference in performance. So if you’re looking for ways to increase Mac processor speed, these are three great options to consider!

MacBook Pro 2011 Slow on Battery

If you’ve noticed that your MacBook Pro 2011 is running a bit slower than usual on battery power, there are a few potential causes and fixes:

Check to see if you have any open apps that use a lot of processing power or memory. If so, close them and see if that makes a difference.
Another possibility is that your battery may get low and need to be replaced. Over time, batteries can lose their capacity to hold a charge, which can lead to reduced performance.If you think this might be the case, take your MacBook Pro to an Apple Store or authorized service provider to have the battery checked out.
It’s also possible that your MacBook Pro is simply running slow because it’s getting old.The overall performance may have degraded due to normal wear and tear if it’s been more than a few years since you bought it. In this case, upgrading to a newer model may be your best bet for improving performance.
Causes and fixes of mac book pro 2011 slow batter

MacBook Shows Low Battery When Fully Charged

There are a few possible explanations if your MacBook is showing a low battery warning when it’s fully charged:

  • It could be a faulty battery,
  • incorrect settings
  • or even a software issue

If you have another MacBook (or an iOS device), try swapping out the batteries to see if that fixes the issue. If it does, you know it’s time to get a new battery for your MacBook. If the problem isn’t with the battery, then it could be due to incorrect settings in your System Preferences.

Go to Apple > System Preferences > Energy Saver and make sure that “Battery Status Light” is set to “Show percentage.” This will ensure you can see how much charge your MacBook has left at all times. It’s also possible that there’s a software issue causing this problem.

Try restarting your MacBook and see if that clears things up. If not, you may need to reset the SMC (System Management Controller). This can be done by following these instructions: https://support.apple.com/en-us/HT201295.

If none of these solutions work, you should contact Apple support for further assistance.

Why Does My Mac Slow down When the Battery is Low?

When your Mac’s battery is low, it may slow down for some reason:

First reasonThe first reason is that your Mac is designed to conserve battery power when running low. This means certain processes and features may be disabled or run less efficiently to save power.
Second reasonThe voltage supplied to the processor begins to drop as the battery gets lower. This can cause the processor to slow down in order to prevent damage from occurring. If your battery is very low, it may shut down completely in order to preserve its remaining power.
Reasons why your mac battery is low

If you find that your Mac is slowing down when the battery is low, there are a few things you can do to help mitigate the issue.

Close Unnesecerry App

Try closing any unnecessary apps or processes that are running in the background. This will help reduce the amount of power your Mac needs to use and hopefully speed things up a bit.

Disable Energy Settings

If you have any energy-saving settings enabled on your Mac (such as reduced brightness or screen timeout), try disabling them, as they may also contribute to the slowdown.

Plug into an Ac Outlet

If all else fails, plugging into an AC outlet will give your Mac the boost it needs to operate at full speed again.

Why is My Mac Being So Slow All of a Sudden?

There can be several reasons your Mac might be running slowly all of a sudden. Here are some potential causes and solutions to help speed up your Mac again:

Quit Unused Apps

Start quitting any apps you’re not using. Having too many apps open at once can drag down your Mac’s performance. To quit an app, right-click on its icon in the Dock and select “Quit.”

Check for Updates

Check if any updates are available for your Mac and installed apps. Outdated software can sometimes cause slowdown issues. You can update your Mac by going to the App Store and clicking on the Updates tab. For updating individual apps, open up the App Store app, click on the Purchased tab, then find and click on the Update button next to the app you want to update.

Avoid Using Too Many Browser Tabs

Make sure you don’t have too many browser tabs open simultaneously, as this can also use up a lot of memory and processing power. Close any tabs you’re not currently using in your web browser(s).

Having Too Many Files on the Pc

Another possible reason for the slowdown is having too many files and/or folders stored on the Desktop or in other areas of Finder windows.

Consider moving these files into folders or transferring them onto an external hard drive or cloud storage service to free up space on your computer’s internal drive. Doing this can also help improve organization, so it’ll be easier to find what you need later.

Malware Attack

If none of these basic tips seem to help, it could indicate a larger problem, such as malware infection, bad hard drive, insufficient RAM, etc.

Frequently Asked Question

Does Low Battery Affect Mac Speed?

No, a low battery does not affect Mac speed. You might even see a slight increase in speed when running on a low battery because the processor is not being taxed as much by other processes. The only time you might notice a decrease in speed is if your battery is very low and about to die; at this point, the computer will start to conserve power and run more slowly.

Does Low Power Mode Make Mac Slower?

No, Low Power Mode does not make your Mac slower. In fact, it can help improve your Mac’s performance by reducing power consumption and extending battery life. Low Power Mode is a great way to get the most out of your Mac while running on battery power.


If your MacBook Pro is running slow, there are a few potential causes. One common reason is that your battery may be dying. This can cause your computer to run slowly because it isn’t getting the power it needs to run at full speed.

Fortunately, there’s an easy fix for this problem. All you need to do is replace your old battery with a new one. You can find replacement batteries for MacBook Pros online or at your local electronics store.

Once you’ve replaced the battery, your MacBook Pro should be running like new again.


Your Mac slows down when the battery gets low because it’s conserving energy. When your battery is low, your Mac dims the screen and reduces processor speed to prolong the battery’s life. This can make your Mac feel slower than usual.

You can do a few things to improve performance, like turning off unnecessary apps and services, but ultimately you’ll just have to wait until your Mac can recharge.

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