Why Does My Laptop Battery Drain So Fast?

You may have asked yourself someday, “why does my laptop battery drain so fast?!”

Almost everyone has asked themselves this question at some point, which is why I finally decided to take the topic head-on and discuss a few reasons behind why you may experience a fast laptop battery drain, and what can you possibly do to keep this from happening again in the future.

Let’s take a look.

So, why does my laptop battery drain so fast?

There are a few reasons why your laptop battery may be draining faster than usual. One possibility is that the battery is old and needs to be replaced.

Another reason may be that the laptop is overheating, which can cause the battery to drain quickly.

Other factors that may contribute to a quick battery drain include using power-hungry applications like video editing software or gaming, having a lot of programs running in the background, or using a defective adapter.

If you’re not sure what’s causing your battery to drain quickly, it’s best to consult with a technician.

Let’s discuss each point in a bit more detail, so you have a better idea and understanding of why your laptop battery drains so fast.

An Old Laptop Battery

When a laptop battery begins to fail, it will often start draining quickly. A laptop battery that used to last for hours may now only last for minutes.

This is because the battery cells inside the laptop are no longer performing as well as they used to and are not able to hold a charge for as long. 

Another reason a laptop battery may drain quickly is if the battery is old. As batteries age, their ability to hold a charge diminishes.

If your laptop is more than two or three years old, it’s likely that its battery is no longer performing at its best.

Your Laptop Is Overheating

It is no secret that laptops run hot. In fact, many people refer to them as “lap warmers.”

The reason for this is that laptops have to work harder than desktops to generate the same amount of power. This extra effort can cause laptops to overheat, which in turn affects the battery life. 

When a laptop overheats, the processor starts working overtime to try and cool down the system.

This extra effort causes the processor to use more power, which in turn reduces the battery life.

In some cases, the laptop may even shut down completely in order to protect itself from further damage. 

There are several things you can do to prevent your laptop from overheating. One is to make sure there is enough ventilation around it. You can also install a cooling pad or use a lap desk.

Power-Hungry Applications

Are you always running out of battery power on your laptop?

It may not be your fault. Many power-hungry applications can dramatically reduce your battery life. For example, watching movies or playing games can consume a lot of power.

So can streaming music or video content. If you’re not careful, these activities can quickly drain your laptop’s battery.

There are a few things you can do to help extend your battery life.

First, try to use lower power-consuming applications whenever possible. Second, make sure to close any applications that are not currently in use.

Finally, adjust the screen brightness settings as needed. These simple tips can help you get the most out of your laptop’s battery.

A Faulty Adapter?

When your laptop is not plugged in and the battery is fully charged, it will run on battery power. How long the battery lasts depends on how much work the computer is doing.

Laptop batteries are designed to last for a certain number of charge cycles. A charge cycle means using all of the battery’s power, even if that’s just for a few minutes.

When you use a defective adapter, it can shorten your battery life because it’s not getting as much of a charge as it should be.

Forgotten Background Applications

Background applications running on a laptop can have an impact on battery life, though the effect may vary depending on the application and how it is used.

For example, a web browser that is constantly refreshing new content or downloading large files will consume more power than one that is mainly used for reading websites.

Similarly, applications that use location services or are constantly checking for updates will drain the battery more quickly than those that don’t.

Generally speaking, any application that is running in the background and not actively being used will have some impact on battery life.

So if you forgot to quit or close your browser or any other applications running in the background, this also impacts how fast your laptop battery drains.

It sometimes happens with my MacBook Pro 16″ that I have Parallels application running in the background and I forget to close it.

The next day I see the laptop’s running HOT and the battery is almost dead, even though the newer M1 processors promise a great deal of battery life due to their optimization, it still drains my laptop battery to almost 0%, or less than 5% during only 3-4 hours.