0

I have a 4 y.o. HP-au123cl laptop running Windows 10 that started making a buzzing noise a couple of days ago when power adapter gets plugged in. If I unplug the adaptor and plug back in, noise stops. The battery indicator in the taskbar stays still in the last few days and says the same thing and does not change "36% available (plugged in)". Adaptor is not hot, cables don't have any damages, adaptor's plug is not loose. Everything seems to be normal besides the noise. Unfortunately, I don't have any spare adaptor or battery to troubleshoot the issue. Is this a battery or adaptor issue? Thank you for your help.

Improve this question
3
  • 1
    Likely a battery issue. If it's the original one,i.e., a 4 years old battery it's as good as dead.
    – ChanganAuto
    Commented May 3, 2021 at 1:25
  • 1
    A good battery on a good machine with a Threshold Manager will easily go 4 years or more. Also be alert to a buzzing sound inside could be an indication of overload if the internal circuit as failed in some way.
    – anon
    Commented May 3, 2021 at 1:35
  • 1
    It could be a bad dc jack on the laptop, is it a tight fit when you plug it in?
    – Moab
    Commented May 3, 2021 at 14:31

1 Answer 1

Reset to default
0

Most of my laptops have batteries 5 years old or more. Given light use and with a partial charge, Li-ion batteries last far longer. However, if the battery is frequently discharged deeply (below 20%), it may die far sooner. Furthermore, it appears there has been a recall on the HP Pavilion 15-au123cl battery.

The cause of the issue could be either the battery or charger. One way to test if the battery is at fault is to fully shut down, remove the battery, and operate from the power supply alone. On some laptops, the battery is easily removable, but it takes some effort to access that in the HP Pavilion 15-au123cl. If you plan on purchasing a third-party battery (available for US$50 or less), you might open the case and unplug the battery to test if that's the cause, but if you hope for replacement under warranty, don't open the case, but look for a similar charger to test it.

Improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .