Why Are Laptop Batteries So Bad?

Laptop batteries are notoriously bad. They die quickly, they’re expensive to replace, and they often cause headaches for users. But why are they so bad? Part of the problem is that laptops are designed to be portable, which means that they need to be lightweight and slim. This makes it difficult to include a large battery, which is necessary for long-lasting power. Laptop batteries are typically used for a wide range of activities, from watching videos to playing games to working on projects. This means that they need to be able to handle different types of loads, which can put a lot of strain on the battery. Laptop batteries are also susceptible to heat damage, which can shorten their lifespan. With all of these factors working against them, it’s no wonder that laptop batteries are so bad.

Most laptop batteries have a shorter lifespan than they should, which many people are noticing recently. This is because of the technology around laptops that has evolved so much but left no room for improvement on the battery. One of the main reasons is that the power efficiency of laptops has been steadily increasing over time. Laptop batteries originally had a 40-hour lifespan and now barely last 10 hours in many cases. The only way to make a battery last longer is by making it larger, which goes against the trend of making laptops smaller and lighter. We can see that there are many factors influencing the laptop battery’s lifespan, but the heat might be the most damaging.

What Causes Laptop Batteries to Fail?

Laptop batteries are designed to last up to 3 years, but as time goes on they tend to fail sooner and sooner. The fact is, there are a few common causes of laptop battery failures, which we’ll outline below.

The first cause of battery failure is age. The lithium-ion cells in a laptop battery become less effective over time as they lose their ability to hold a charge. This can be due to natural degradation or from environmental factors like extreme temperature changes or being left unused for an extended period of time.

Another common cause of laptop battery failure is usage. When your laptop is in use, the processor frequently switches between different tasks that require different amounts of energy. This constant demand can wear down the battery faster than if it was just sitting idle.

A final cause of battery failure is poor storage conditions. Laptops often spend a lot of time plugged into a power source and not being used, which can lead to a build-up of energy in the batteries over time. Keeping your laptop stored in a cool, dry place will help prevent this from happening.

Why does Laptop battery degrade so fast?

Laptop Battery life has not kept up with Moore’s law. Most people don’t know this but there is a thing called “The Moore’s Law” which is the observation that the number of transistors in a dense integrated circuit board has approximately doubled every 18 months since its invention. This basically means that electronic devices have gotten way more powerful and way smaller at a rate of approximately doubling every 18 months.

Nowadays, the reason for this is that battery capacity tends to degrade over time. As a result, a laptop that can run for hours on a single charge when new may only be able to manage a few minutes after just a few years of use.

There are several factors that contribute to this degradation, including heat exposure, depth of discharge, and charging cycles. In addition, the lithium-ion batteries used in most laptops are particularly susceptible to degradation when they are stored at high or low temperatures.

As a result, it’s important to take care of your laptop battery if you want it to last. Keep it out of extreme temperatures, avoid running it all the way down before recharging, and don’t leave it plugged in for long periods of time. With proper care, you can extend the life of your laptop battery and get the most out of your investment.

What Are the Problems with Laptop Batteries?

Bad laptop batteries are one of the most common problems with laptops. They can cause a lot of issues, including decreased battery life, overheating, and even fire. Here are some of the reasons why laptop batteries can be so bad.

Poor Quality Battery Cells: The biggest problem with laptop batteries is that they’re often made from low-quality cells. These cells aren’t able to hold a charge as well as better quality cells, and they also tend to heat up more quickly. This leads to decreased battery life and even overheating.

Overuse: Too much use can also lead to degraded battery cells. When you keep your laptop plugged in all the time, the battery cells get used up really quickly. This causes them to heat up and lose their ability to hold a charge.

Manufactured Weakness: Some batteries are simply manufactured poorly. Sometimes the cells won’t hold a charge as well as they should, or they’ll heat up quickly even when not in use. This makes them less than ideal for use in a laptop battery.

Poor Design: Many times, poor design is to blame for many of the issues with laptop

How Can I Know My Laptop Battery is Good?

Laptop batteries are notorious for being poor performers. This is mainly because they are designed to last for a short amount of time and aren’t built to handle the heavy use that is common in day-to-day tasks. 

To check if your battery is good is to determine how long it has been since it was last charged. If it has been more than two weeks since the battery was last charged, then it’s time to replace it. Once you know how long the battery has been out, you can start to look for clues as to its health. 

If the battery is swollen or discolored, it likely isn’t good anymore and should be replaced. Other signs that a battery may be in trouble include weak indicators or a completely dead cell. If you notice any of these symptoms, then it’s best to take your laptop in for service or replacement.

Why does my laptop battery only last 1 hour?

As anyone who has ever been caught without a power source can attest, laptop batteries are notoriously finicky. Even when fully charged, they often only last for a few hours. So why is it that laptop batteries never seem to last as long as we need them to, The answer, it turns out, has to do with a number of factors.

First of all, laptops consume a lot of power, especially when running resource-intensive programs or using power-hungry features like the backlit keyboard.

In addition, many laptops are now equipped with high-resolution displays and fast processors, both of which require more power.

The battery itself begins to degrade over time, becoming less effective at storing and releasing energy. As a result, it’s not uncommon for a laptop battery to only last for a year or two.

Fortunately, there are a few things you can do to help extend the life of your battery. For instance, avoid charging your laptop to 100% all the time, as this puts unnecessary strain on the battery.

In addition, avoid leaving your laptop plugged in when it’s not in use, as this can also damage the battery.

By following these simple tips, you can help ensure that your laptop battery lasts as long as possible.


Generally speaking, laptop batteries are considered to be one of the weakest points of many laptops. This is in part because they are typically not designed to be replaced by the average consumer, and also because they are commonly made with lower-quality components. Over time, these batteries can eventually wear out, leading to decreased battery life and even a possible shutdown or failure of the laptop.

Nazim Naqvi
Nazim Naqvi is a Mechanical Engineer who loves cars and reviewing laptops. He's been passionate about cars ever since he was a child, and has always been fascinated by their mechanics. Nazim loves to share his knowledge about cars with others, and enjoys helping people find the perfect car for their needs. He also enjoys reviewing laptops, as he feels that it's important for people to have accurate information about the products they're considering buying.