djinncoyote (![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
djinncoyote) wrote2019-06-24 02:37 am
djinncoyote) wrote2019-06-24 02:37 am
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Windows laptop battery log
The below command generates a battery report, showing when the laptop switched between running on outlet power versus battery power. It also shows when the laptop was turned on or woken up from sleep mode.
This was helpful in determining exactly what time a power outage started, as I had my laptop turned on and plugged into the AC outlet at the time it happened, and the outage caused it to switch to battery power.
The log also shows other interesting info, including the change in the battery's full charge capacity over time. Mine was initially 62,160 mWh, 3 years ago. Now it is down to 54,690 mWh.
From: https://superuser.com/questions/1165322/how-can-i-find-out-when-my-laptop-was-last-unplugged-in-windows-10
Open a Command Prompt as Administrator.
Type in powercfg /batteryreport /output "C:\batteryreport.html" and hit Enter.
Open the report file using a web browser.
This was helpful in determining exactly what time a power outage started, as I had my laptop turned on and plugged into the AC outlet at the time it happened, and the outage caused it to switch to battery power.
The log also shows other interesting info, including the change in the battery's full charge capacity over time. Mine was initially 62,160 mWh, 3 years ago. Now it is down to 54,690 mWh.
From: https://superuser.com/questions/1165322/how-can-i-find-out-when-my-laptop-was-last-unplugged-in-windows-10
Open a Command Prompt as Administrator.
Type in powercfg /batteryreport /output "C:\batteryreport.html" and hit Enter.
Open the report file using a web browser.