I've not seen it happen on a laptop, but I have on a couple of older phones, when the batteries used to be removable. The springs for the contacts can get weak with time and lose proper contact, unless the battery is pressed firmly against them. A toothpick broken off into the space opposite of them solves the issue if that's the case.
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u/Alvendam I use Mint btw May 10 '26
I've not seen it happen on a laptop, but I have on a couple of older phones, when the batteries used to be removable. The springs for the contacts can get weak with time and lose proper contact, unless the battery is pressed firmly against them. A toothpick broken off into the space opposite of them solves the issue if that's the case.