Pay attention to these signs, as your battery percentage could be out of whack.To effectively fix what’s going on, you first need to know what could be causing the problem.Manufacturers generally recommend calibrating the battery every 2-3 months. In reality, you likely don’t have to do this that often if you’re not too worried about your laptop’s battery readings being completely precise.Windows 8 is a perfect match for the new breed of touchscreen laptops thanks to its touch-friendly interface.A battery that’s showing the wrong percentage level in your Menu Bar is reporting a higher or lower percentage than it’s actually exhibiting.When it does this, you may get low power alerts sooner than you would expect to and you may be tethering your computer to an AC adapter more than you have to.
If something gets out of whack with your battery indicator, resetting the SMC could refresh the battery percentage so it’s accurate again.
These options are easy to set up and configure, and you'll see a big difference in how long your device lasts between charges. Check your battery life Windows 8 makes it easy to keep an eye on your battery, no matter which part of the OS you're using.
Although we're using Windows 8 here, there are similar settings available in Windows 7, Vista and XP as well, so you can use these tips to extend the life of an older laptop battery too. The first place to look is the Lock screen, which displays your remaining charge along with the time and date.
No matter what the cause may be, there’s always a fix for an incorrect battery level in your Mac’s Menu Bar.
So you’re using your laptop and, all of the sudden, it dies.