Laptop Turns Off When Unplugged?

Laptops are one of the most popular electronic devices, but they are not without their problems. Which can be frustrating when you’re trying to get work done on the go. In addition to being a nuisance, a laptop that turns off when unplugged can also be dangerous if you’re not careful.

Assuming you’re referring to a laptop that turns itself off unexpectedly, there are several potential causes. It could be a problem with the power supply, the battery, or even the motherboard.

Troubleshooting power supply: If your laptop turns off when you unplug it, there could be a problem with your power supply. Troubleshooting the power supply is the first step to take in this situation. Check the power cord and adapter to make sure they’re properly connected. If they appear to be fine, try plugging them into a different outlet. If that doesn’t work, try using a different method.

Power cord or adapter: One of the most common causes of laptops shutting down when unplugged is a problem with the power cord or adapter. If the cord is frayed or damaged in any way, it can cause an interruption in the flow of electricity, resulting in the laptop shutting down. Another possibility is that the adapter is not providing enough power to keep the laptop running.

This can be caused by a number of factors, including a loose connection or a problem with the adapter itself. If you suspect that the power cord or adapter is to blame for your laptop shutting down, be sure to check both for any signs of damage and to make sure they are securely connected. Once you have ruled out these potential problems, you can move on to other possible causes.

BIOS Issue: The BIOS is software that controls how the computer starts up and interacts with the operating system. If the BIOS settings are incorrect, it can cause the laptop to turn off when unplugged. To access the BIOS, restart the computer and press the key that appears on the screen during startup. This key is typically F2, F12, ESC, or DEL. Once in the BIOS, navigate to the power management settings and ensure that ‘power off when AC is disconnected’ is disabled. Save your changes and exit the BIOS. If this does not fix the problem, try resetting the BIOS to its default settings.

Defective Battery: Over time, batteries degrade and are no longer able to hold a charge. If your laptop only turns off when unplugged, it’s likely that the battery needs to be replaced. You can check the battery health in Windows by going to “Control Panel > All Control Panel Items > Power Options >Battery Health.” If it says that the battery is “Very Low,” it’s time for a replacement.

Another possibility is that the power settings on your laptop are configured to turn off the display or enter sleep mode when the lid is closed or when running on battery power. To change these settings, go to “Control Panel > All Control Panel Items > Power Options >System Settings.” From here, you can adjust the power settings to your liking. Be sure to save your changes before exiting.

Hardware Issues: Hardware issues are the most common reason why a laptop turns off when unplugged. If your computer is several years old, it’s likely that the battery is simply worn out and needs to be replaced. Over time, batteries lose their ability to hold a charge, and they eventually need to be replaced. In some cases, you may be able to revive an old battery by recalibrating it. To do this, you’ll need to discharge the battery completely and then recharge it fully.

This can sometimes help to restore lost capacity. If your laptop is still relatively new, it’s possible that there’s a problem with the charging port or power adapter. Loose connections can prevent the charger from providing enough power, and dirt or damage to the charging port can also cause problems. If you suspect that the charging port is to blame, try cleaning it with a can of compressed air. If that doesn’t work, you may need to have the port repaired or replaced.

How to Test Your Laptop Battery?

Assuming that you have a laptop with a removable battery, the first thing you need to do is to power off your laptop and remove the battery.

Once the battery is out, press and hold the power button for 15 seconds to drain any residual charge from the device. Next, locate the test points on the back of the battery. Most batteries will have two sets of test points, one for discharge and one for a charge. To test the discharge rate, connect a voltmeter to the positive and negative test points and record the reading.

Then, measure the current by connecting an ammeter to the positive and negative test points. The discharge rate should be between 0.1 and 0.2 volts per cell, and the current should be between 1/20 and 1/10 of the battery’s capacity (in amp-hours).

Why does my Dell laptop turn off when I unplug it?

One possible reason why your Dell laptop might turn off when you unplug it is that the battery is not properly seated.

If the battery is loose, it can cause an electrical short that will cause the laptop to turn off. To check if this is the problem, remove the battery and then put it back in, making sure that it is snugly in place.

Another possibility is that the power adapter is not properly connected to the laptop. Check the connection to make sure that it is secure.

Finally, it could be an issue with the power settings. To check this, go to the Control Panel and click on Power Options. From here, you can adjust the settings so that the laptop does not turn off when you unplug it.

How do I check my laptop battery health?

Laptop batteries are an essential part of daily life for many people. Not only do they provide a portable power source, but they also help to extend the life of your laptop. However, over time, batteries can begin to degrade, affecting both performance and lifespan. As a result, it is important to regularly check your battery health to ensure that it is running properly.

There are a few different ways to check your battery health.

One option is to use the built-in tools on your laptop. Most operating systems will have a dedicated utility for monitoring battery health, and this can give you a good overview of how your battery is performing.

To use a third-party tool such as BatterySense or BatteryMon. These programs will provide more detailed information about your battery, including things like discharge rate and capacity.

You can also check your battery health by using a multimeter. This will give you a more accurate reading, but it is a more complex process.

To use a multimeter, first, you need to find the test points on the back of the battery. Once you have located these, connect the positive lead to the positive test point and the negative lead to the negative test point.

Next, set the multimeter to the appropriate setting and take a reading.

How long do laptop batteries last?

The average lifespan of a laptop battery is around three to five years. However, this can vary depending on the type of battery, how often it’s used, and what it’s used for. For example, if you regularly use your laptop for power-intensive activities like gaming or video editing, your battery may not last as long as someone who only uses their laptop for light web browsing and email.

There are a few things you can do to help extend the life of your laptop battery:

  • Avoid extreme temperatures. both high and low temperatures can shorten the lifespan of your battery.
  • Use your laptop’s power-saving features. Things like dimming the screen and disabling unnecessary background processes can help conserve battery power.
  • Keep the battery charged. It’s best to keep your battery between 40% and 80% charged to help prolong its lifespan.

Troubleshooting Tips

Laptop batteries are one of the most important parts of your laptop. They provide power to your laptop when there is no other source of power available. However, laptop batteries don’t last forever. In fact, they have a relatively short lifespan compared to other laptop components.

So how long do laptop batteries last? It depends on a number of factors, including how often you use your laptop, what type of battery it uses, and how well you take care of it.

Here are some tips to help you get the most out of your laptop battery:

Use your laptop regularly. Laptop batteries last longest when they’re used frequently. If you only use your laptop occasionally, try to use it for at least an hour each week to keep the battery in good condition.

Avoid extreme temperatures. Laptop batteries don’t like extreme heat or cold. If you can, avoid using your laptop in hot environments (like on your lap) or in very cold environments (like outside in the winter).

Store your laptop properly when you’re not using it. When you’re not using your laptop, store it in a cool, dry place. Avoid storing it in direct sunlight or in humid environments.

Reducing Power Uses on Your Laptop

If you’re looking to increase the lifespan of your laptop battery, there are a few things you can do.

  1. Try to reduce the power usage of your laptop when you’re not plugged in. This means turning down the screen brightness, disabling any unnecessary features or programs, and closing any background applications.
  2. Avoid charging your laptop 100% all the time. It’s better to keep it around 50-80%. When you do need to charge it up, make sure to use a quality charger and cable. Overcharging or using poor-quality charging equipment can damage your battery and shorten its lifespan.
  3. Be mindful of how and where you store your laptop when it’s not in use. Extreme temperatures can degrade the battery, so avoid leaving it in direct sunlight or in a car on a hot day. If possible, store it in a cool, dry place. With proper care, you can help extend the life of your laptop battery and keep it running at peak performance.

What Affects the Laptop Battery Lifespan?

One of the most important parts of owning a laptop is making sure that the battery lasts as long as possible. After all, there’s nothing worse than being in the middle of a project and having your computer die on you.

One of the biggest factors is how often you use it. If you’re constantly working on your laptop, then the battery is going to drain much faster than if you only use it for occasional internet browsing or emailing.

Battery life is what programs you’re running. Power-hungry programs like video editing software or games will drain the battery much faster than simpler programs like word processors or web browsers. If you’re planning on using your laptop for resource-intensive tasks, make sure to plug it in so you don’t run out of power mid-task.

Where you store your laptop can also affect its battery life. If you keep it stored in a hot environment (like a car during summer), this can shorten the lifespan of the battery. Conversely, storing it in a cool, dry place will help keep the battery happy and healthy. There’s not a lot to say about this one. In nearly every case, you can expect battery life to be around five hours under normal usage conditions.

For example, if you’re using it for web browsing or editing documents in Microsoft Word, you won’t see that dramatic of a drop in battery life unless you’ve modified your settings for maximum power efficiency (which is a good place for the average user to start).

On the other hand, if you have resource-intensive applications downloading data or streaming video continuously in the background, you would see a dip in this term. Although battery capacity has been creeping steadily upwards, it doesn’t take much to put a nasty dent in the amount of time you can spend online with your notebook on one battery charge. So when performance does begin to suffer, playing with power settings is a good place for you to start increasing your efficiency.


We hope that this article was helpful in addressing the issue of your laptop turning off when unplugged. As we discussed, there are several potential causes for this problem and a few different solutions that you can try. If the problem persists, or if you are experiencing other issues with your laptop, please feel free to contact us for further assistance.

Charlotte Tilbury
Charlotte Tilbury is a SEO Writer from England. She graduated from Kings College of London with a degree in English Literature. Charlotte loves to write and she is passionate about helping businesses achieve their online marketing goals. When she's not writing, you can find her reading, playing tennis, or spending time with her literature.