Laptop batteries have a limited lifespan and their performance will gradually decline after prolonged use. So, how to judge whether the laptop battery has reached the end of its life? This article will take you through common battery aging symptoms and provide you with some solutions.
How to tell if your laptop battery has reached the end of its life?
Battery life drops significantly
The most intuitive sign is that battery life is significantly reduced. Under normal circumstances, a new battery should be able to run your laptop for approximately 5-8 hours (depending on the device). But as battery usage increases, its endurance will gradually diminish. If you find that your battery only lasts a few hours, or even less, without charging, it may be a sign that the battery has reached the end of its life.
Battery charging time becomes longer
When the health of the battery deteriorates, charging times may also become unusually long. If your laptop takes longer than usual to charge, or if it fails to charge completely, or even displays “Not Full” after charging to 100%, it means that the battery’s charging capacity has been significantly reduced.
Battery swelling or deformation
Battery swelling is a very obvious sign, usually occurring when the battery chemistry gradually loses stability. If you notice a bulge on the laptop screen or casing, the battery swelling not only affects the appearance of the device, but may also pose a safety hazard. In this case, stop using it immediately and replace the battery.
Battery display problem: power fluctuations
Many users will find that there is a big discrepancy between the battery power display and actual usage. For example, when the laptop shows that the battery is 40% remaining, it suddenly shuts down automatically, or the battery power drops rapidly in a short period of time, these are signs of poor battery health. In fact, the battery cells inside the battery will lose their original voltage stability after a period of use, resulting in inaccurate power display.
Laptop fails to start or loses power frequently
If your laptop computer still cannot be turned on when the battery is fully charged, or it often loses power suddenly, the battery may no longer provide enough current to support the normal operation of the laptop. This usually happens when the battery is old and can no longer provide a stable current for the computer.
Battery health check tips
Modern laptops, such as MacBooks, Windows devices, usually come with built-in battery health monitoring tools. Through these tools, you can directly view the health status of the battery. If the health status is displayed as “poor” or “needs to be replaced”, it means that the performance of the battery has been significantly reduced and it is time to consider replacing the battery.
On a MacBook, you can view detailed battery health information by clicking the Apple menu in the upper-left corner of the screen and selecting About This Mac > System Report > Battery.
On a Windows computer, you can view the battery health report through command line tools such as PowerShell by entering the powercfg /batteryreport command to generate a report to evaluate the battery status.
When should you replace your laptop battery?
If your laptop battery has already shown the above symptoms and the battery health status is poor, it is time to consider replacing the battery. Most laptop batteries will begin to decline after 2-3 years, especially under frequent use or high temperature environments. Replacing the battery is usually a relatively simple process and can be completed through official after-sales service, authorized repair centers or third-party repair points.
The battery is an important part of the laptop computer, and the decline of battery life is a process that every laptop user will experience. By paying attention to the battery usage and promptly discovering the battery decline signs, you can take measures before the battery completely fails and avoid inconvenience at work. If you find that the battery performance has significantly declined, replace the battery in time to ensure the normal use of the laptop.
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