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Old laptop died 🥲 (lemmy.world)

submitted 10 months ago* (last edited 10 months ago) by UnH1ng3d@lemmy.world to c/askelectronics@discuss.tchncs.de

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I tried to start my laptop earlier, only for nothing to happen. It won't start on battery or when plugged in (it can run without a battery when plugged in). The battery does seem to be dead, and so is the 3V CMOS battery.

I opened it up and noticed a circle visable on one of the inductors. Hopefully you can see it in the picture.

Could this be the problem, or is that normal?

Update: I've tested some suggestion and watched some repair videos, but I found nothing. Goodbye old friend 🥲🤚

Thanks for the help guys

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[–] NaibofTabr@infosec.pub 0 points 10 months ago* (last edited 10 months ago)

It won't start on battery or when plugged in (it can run without a battery when plugged in).

So the battery is trash. Does it fully boot when you start it without the battery?

The battery does seem to be dead, and so is the 3V CMOS battery.

Did you replace the CMOS battery?

What does your multimeter tell you about the laptop battery?

https://pinoutdiagrams.com/battery/pinout-on-laptop-battery

The problem might be with dead/shorted cells in the battery or the charge controller in the battery.