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April 27th, 2019 06:00
Latitude E5440 doesn't read battery correctly on windows 10
So I updated my latitude E5440 from windows 7 to windows 10 and the computer hibernates after about 10 min while on battery. I then did a fresh install of windows 10 but it didn't resolve the problem.
The issue is that windows 10 thinks the battery drains after 10 minutes and then goes into hibernation. I can then turn the laptop on, and continue to use it for 2+ hours while the battery is at 1%.
While this is kind of a work around, It's still annoying because I have to wait for it to die, then use it with no indication of when the battery is getting low.
I tried to "recalibrate it" by charging it to full, taking the battery out, deleting both the batteries in the device manager, powering it down, removing ac, then plugging in the battery and then the AC, letting it charge fully, and then letting it drain again, but this doesn't work.
I'm kinda lost as to what I should do now as its clearly a software issue because the battery lasts (after the initial hibernation) for 2+ hours while at 1%

