This isn’t necessarily an indicator that Windows is overestimating or going mad. It’s usually related to the battery itself; over time, even if you’re scrupulously careful, the amount of charge your battery can hold will decrease. But Windows won’t always keep up — it presumes your battery is as fresh and sprightly as it was when your laptop was new.
Luckily, there is a solution. We need to teach Windows about your battery in its current state, calibrating its expectations with reality. It’s easy to do, but you’ll need a bit of time.
Here’s how to show Windows that your battery isn’t as new as the day you bought it.
- The Easy Way
Many manufacturers include tools for battery calibration among their pre-installed software. It’s quite possible you’ve completely missed this (I certainly tend to ignore pre-installed apps), but have a look through your laptop’s manufacturer will know more about your battery than Windows does, and running the recommended app should net you the best possible results.
