Acer Laptop Battery Draining Fast

Before you start any significant repairs to your device, please check the following:

• Restart your computer. Restarting your laptop correctly finalizes any pending repairs and restarts all systems services. Use the restart option in the Start Menu.
• Perform a hard shutdown. Shut down your laptop. Once it's off, press and hold the power button for 15-30 seconds. Wait a moment, then try to power on again.

Advertised battery life and battery life in practice often vary wildly. The specs page on your new Acer Laptop may boast anywhere from 7 to 8 hours—you're not likely to see that in typical use. These numbers are acquired in precisely controlled and idealized scenarios. They're trying to sell you a computer. They want you to see best-case scenario numbers.

If you haven't done so already, use the following settings and recommendations to create a lower energy profile and see if usage with ideal conditions corrects the issue. This will help you to know whether your hardware is the issue or whether your battery is just suffering from heavy load.

• Check what is using your battery. Navigate to Settings > System > Battery. This gives a breakdown of what is sucking down power. Limit the use of apps that consume lots of energy or come to terms with their impact on battery life.
  • Excessive internet browsing tabs can be a huge power suck, especially for memory hungry browsers like Chrome. Try minimizing open tabs for a time to see if battery life improves.
• Decrease your screen lock timeout or lock your screen when you’re done using it. These settings are located in System > Power & Sleep.
• Close Unnecessary Applications and quit any background processes. To quit background processes:
  • Open Task Manager by right-clicking on the Windows start menu or pressing Ctrl + Shift + Esc on your keyboard. You can get more information by clicking More details.
  • Select any programs to close and click End task in the bottom right.
    • Duplicate copies of anti-virus software and other bloatwares can be great candidates to kill.
  • You can learn more about Malware and Bloatware below.
• Check your laptop's power mode by clicking the battery icon in the system tray in the bottom right. Adjust the slider for "better battery" or select "Best power efficiency" from the dropdown menu. This may impact the performance of your laptop.
• Adjust Screen Brightness: Lower the screen brightness to conserve battery power.
• Remove any Battery-Draining Peripherals: Disconnect any external devices drawing power from your laptop.

Use your laptop for a few cycles with this configuration to see if battery life increases significantly. If it does, your usage is likely the cause, and a battery replacement won't help much. Use more power efficient settings when possible, or stay attached to an outlet to get the most from your machine.

It may save time to follow the battery recalibration steps below as you're testing these new settings, since you'll already be charging and discharging your battery.

Sometimes, your battery management system can drift from reality and report an empty battery when it has plenty of charge. To calibrate the battery on your Acer Laptop:

1. Charge it to 100%, and keep charging it for at least two more hours.
2. Unplug your laptop and use it normally to drain the battery.
3. Save your work when you see the low battery warning.
4. Keep your laptop on until it goes to sleep due to low battery.
5. Wait at least five hours, then charge your laptop uninterrupted to 100%.

Batteries are a consumable device, and if you've been using your laptop for many years—or are just a bit unlucky—your battery might be worn out.

• Reseat the battery (or the battery connector)—some Acer laptop models make it easier than others.
• Check for visual signs of battery age, swelling, or leak. Swollen batteries may manifest as difficulty in using the trackpad or the keyboard. As the battery expands, it exerts upward pressure on the underside of these components.
• If your laptop has been in the trenches, you expose your stuff to extreme climates, or if you're just a power user who grinds through batteries, an replacement might be your best bet.

If you can't find a replacement guide for the model of your Acer device, don't fear—opening the laptop, unplugging the battery connector, and removing the screws holding in the battery is all it takes for most models.

It isn't just the apps you intend to run sucking up system resources. So too can nefarious softwares you may have picked up on your internet travels. These hidden background processes can use significant battery life, even when you're seemingly doing little.

• Open Task Manager to check system utilization. You can access this by right-clicking the Windows Start Menu or pressing Ctrl + Shift + Esc on your keyboard.
  • Check the processes to see if anything here is consuming a large amount of system resources. Some critical thinking and internet research may be needed to determine what's what.
  • Any process using more than 8-10% that you don't recognize should be researched and assessed. A quick google search should let you know whether the process is nefarious or not.
• Download a free, reputable anti-malware program or use the software built into your Windows OS. These tools can scan your machine for malware and alert you to any programs or files that may have found their way onto your machine without your knowledge.
  • Malwarebytes is a safe and effective recommendation at time of writing (2024).
  • Beware that some supposed anti-malware programs are malware themselves. Using additional system resources further drains your battery. Research good free options, or use the program preinstalled on your System (look for Windows Defender if you're on Windows 8 or later).

Moving forward, follow best practices for internet safety. This will prevent you from accumulating more malware in the future:

• Use ad-blocking software like uBlock Origin to prevent ads from loading in your browser.
• Don't allow third-party websites to download software from your computer.
• Avoid pirating games or other software. Sorry, internet BlackBeards, these are enormous vectors for infection.
• Avoid scam emails and be highly suspicious of any attachments on all emails. NEVER click on a link you don't recognize.
• Keep software up to date.
• Recognize .exe files and NEVER open unknown .exe files. If you find this file type on your computer and don't recognize it, you should delete it immediately.

Even the applications you can tell are installed may drain more battery than you realize. How many applications on your computer don't ever get users? Or did it come installed on your machine, but you never removed them? It's time to do some housekeeping.

• Open Task Manager (press Ctrl + Shift + Esc). Use the Startup tab to disable any unnecessary startup programs. If you're unsure if it's necessary, right-click on the process and select Search Online to get some added details.
• Open your Start Menu and scroll down the list of applications. Remove anything you don't use. Right-click and select uninstall to display the appropriate menu (or to remove the app if it was installed from the Microsoft Store).
• People are often tempted to keep Acer's software loaded, but it is unneeded. Display or audio tweakers are usually unnecessary, but support software can be helpful.