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June 20th, 2024 03:12
When plug in directly shows 100
Hi
I use Dell Precision 5520 it's battery is good in consuming charge, but just when it gets full charge to 100 percent after unplugging when it's charge percentage is 99 when I plug in it shows 100 percent, in 98,97,96,95,94 also when I plug in it directly shows 100 percent
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Chino de Oro
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June 20th, 2024 06:04
Dell Precision 5520 is about 6 - 7 years old. The battery could be failing, hence the faulty readings. Perform battery calibration cycle to see if it may help to restore the baseline https://www.dell.com/support/kbdoc/en-us/000205559/how-to-perform-a-battery-calibration-cycle-on-a-dell-laptop
peemints
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June 28th, 2024 18:47
It's worth noting that the computer will charge to 100%, let it drain to 95%, and then start charging again all while plugged in. You can see this in the BIOS when you have a charger connected. If the battery is above 95%, the BIOS will just say "Connected," while if it's under 95% the BIOS will say "Connected, Charging." This is expected behavior.
That being said, if this is the original battery, then it most likely needs to be replaced.