Sudden shutdowns without apparent reason are often a sign that you need to calibrate a battery inside your laptop. Every computer has a built-in battery controller that estimates how much standby time is left and displays the charge level. Sometimes that controller can go wrong and start showing inaccurate values. It does not mean that you need to replace a controller right away. Begin with calibrating the battery in a Windows laptop.
Before you start, it is important to note that battery calibration will not magically give you few more hours of charge. It just forces your laptop to show more accurate values. Also, note that battery calibration does not require additional hardware, nor it harms your computer. In a nutshell, battery calibration is a natural process of fully discharging and fully charging a battery inside your PC.
Tip. Abnormal shutdowns and weak battery life may be signs of aging and degrading batteries. We recommend creating a battery report in Windows to determine whether it is time to replace a battery.
How Often Should I Calibrate Battery on Laptop?
It all depends on how you use your computer. If you do not allow your battery to charge more than 90-95%, perform battery calibration every three to four months. Also, you can calibrate a battery in a Windows PC every time you notice anomalies in its behavior. Again, battery calibration does not cause any harm, so it is safe to do it whenever you want.
Note that battery calibration is a relevant process for mostly old laptops. Modern computers have a more sophisticated firmware that takes care of battery health. Also, Macbooks with non-removable batteries do not need calibration at all.
Tip. Some manufacturers offer battery calibration tools for their laptops. We recommend checking your OEM’s official website for such a tool. Also, some manufacturers provide specific calibration procedures. Follow those instructions to get the best result.
How to Calibrate Battery in Windows 10 Laptop or Tablet?
Unless your manufacturer has a dedicated battery calibration guide, follow these steps to calibrate a battery in a Windows laptop or tablet:
- Connect your device to a power source and wait until it charges up to 100%.
- Let your computer stay plugged in with a full charge for an hour or two to cool down a battery.
- Now, right-click the Start button and select “Power Options.”
- In the “Power and Sleep” section, select “Never” for both “Screen” and “Sleep.”
- Next, click the “Additional Power Settings” link to open the Control Panel.
- Click “Change plan settings” next to your current power plan.
- Next, click “Change advanced power settings.”
- In a new window, scroll down to the “Battery” option.
- Find the “Critical battery action” and select “Hibernate.”
- Finally, change the “Critical battery level” to the lowest possible value. Some manufacturers allow setting that value down to 0%.
- Save the changes and unplug your PC. Now you need to leave your laptop or tablet running without any apps or taxing tasks with any preferrable brightness level. Keep it running until it fully drains the battery and shuts down.
- Now, connect your computer to a power source and fully charge it (you can use the device during the process).
And that is how you calibrate a battery in a Windows laptop or tablet. Once the battery calibration is complete, your device should display correct charging levels and no longer suffer from abnormal shutdowns.