I have this laptop that I have used for a little over a year now, the HP ProBook 4540s. It is far from a high-end laptop, but it is a damn good work horse that never disappoints when it comes to my daily computing needs.
I spend at least 12 hours daily on the Internet, and battery life is something that is crucial to me. When shopping for a laptop, top on my list of things to look at is the CPU clock speed, RAM, Battery hours, Display quality and Typing comfort.
Lately, my ProBook has been shutting down without giving that ‘Low Battery’ warning. It is very annoying, and I am sure a lot of people have encountered such a problem. Well, this is no rocket science, my laptop battery is obviously suffering from aging. I have used it for one year and at four months or so. It still gives me at least 2 hours of heavy browsing, but the problem is, lately it doesn’t warn me when the battery is too low.
Like I said, it doesn’t take a rocket scientist to know that the problem is my computer system can no longer accurately calibrate the battery meter. It doesn’t know when to warn me that it is time to recharge my laptop or at least save the work am working on before the computer shuts down.
How to Calibrate my Laptop’s Battery
The solution here would be to run a fresh calibration process for the laptop. When you first buy the laptop, the manufacturer calibrates it, so if gives you accurate readings. But as you use the laptop the battery ages and undergoes some wear and tear and the calibration meter gets a little off. There are two ways you can calibrate your laptop’s battery.
Calibrating the Battery when the Laptop is in use
- First fully charge your laptop to (99% – 100% capacity).
- Disconnect the power cord from the laptop.
- Go to Start, and type power options in the Search Field that will come up and hit enter.
- The Control Panel will open up with the Power Options.
- Click on Create a power plan on the left sidebar.
- When the Create a power plan window opens up, click on the Plan name field and type Battery Calibration and click
- On the Change settings for the plan: Battery Calibration window, chose Never for all the drop down menu on the On battery
- Click Create to accept the values and continue using your laptop as you normally would until the battery drains completely.
- When the laptop shuts down once the battery is drained, connect the power cord and turn on the computer.
- When the computer is on, go back to the Select a power plan window in the Control Panel and select your previous power plan setting.
The problem of your laptop shutting down without warning should be over since the computer has run a fresh calibration on your aging battery. It can now give you accurate estimates on the Battery Meter located on the left side of the taskbar. There should be no more surprise shut down, which can be very frustrating if you were deep into your work.
We will do a follow up article this week about calibrating your laptop when it is not in use. So stay tuned.