Simple trick to know how long laptops last after each charge
The actual battery life specifications announced by laptop manufacturers may vary, or even differ. However, there are a few ways you can accurately measure your laptop's battery life.
Laptop configuration settings Before proceeding, let's review the configuration of the current laptop. You can change the default settings to suit your usage habits.
In Windows 7 and up, the tool here is Power Options.
Step 1: Right-click on the Battery icon next to System Clock.
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