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Battery charged at 100%, but will not run from battery

I have a HP Pavilion 15-db0032na,

The battery states it is always charged at 100%, but without the power cable will turn off as it cannot run from it's own power.

After attempting the usual stuff (trying to calibrate it with bios and software etc) but getting nowhere as it cannot run from it's own power I have taken the battery out and tested the voltage of each cell. each cell should be 3.7v which usually they max out at 4.2v but noticed each cell at 4.3v.

I took some LED's and ran each cell to 4v and put the battery back into the laptop. The battery worked lovely for around 3 days, then the same issue crept up.

I assume the BMS on the battery is not functioning properly since the cells seem to be holding a charge, yet the laptop will not run from them.

Looking for a battery replacement and the batteries I find are 11.55v battery e.g.

HP HT03XL Battery

Yet the battery that is installed is a 11.4v which is shown in the install guides:

https://guide-images.cdn.ifixit.com/igi/...

Does anybody have any idea to get the battery working again or is it a lost cause?

Does anybody have any idea if the battery from ifixit would be compatible even though the voltages are different.

Any help would be appreciated.

Immagine HP HT03XL Battery

Prodotto

HP HT03XL Battery

$59.99

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@azzy9 Turning off once the charger is unplugged and it's at "100%" is a typical symptom of a faulty battery.

You can try calibrating it by letting it run down to 0% and charging it fully to 100%, but in my experience with dead batteries it doesn't change anything.

It usually only works for batteries which work for a while and show that they're half full before abruptly reaching 0% and turning the device off. Yours isn't doing that.

As long as the battery model is the same, minor differences in voltage is not an issue. As long as it's within 10%, it's perfectly fine.

I would go ahead and replace the battery.

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Azzy9 sarà eternamente grato.
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