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Battery problem on HP Probook 4520s

Battery problem on HP Probook 4520s

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knickd
Member
99
08-01-2026, 04:32 PM
#1
Hi, I just bought a used HP Probook 4520s, put in a hard drive that holds 500GB of storage and 8 gigabytes of memory, and loaded Windows 10 on x64. The laptop is working well while it's plugged into power, but the moment I unplug it, the battery life crashes down to just 45 minutes or even less in my taskbar. The battery drains very fast when it's not connected to a charger. Also, the whole computer gets super slow and hard to use after unplugging. This is making using the laptop almost impossible for me. I could really need some help fixing this!
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knickd
08-01-2026, 04:32 PM #1

Hi, I just bought a used HP Probook 4520s, put in a hard drive that holds 500GB of storage and 8 gigabytes of memory, and loaded Windows 10 on x64. The laptop is working well while it's plugged into power, but the moment I unplug it, the battery life crashes down to just 45 minutes or even less in my taskbar. The battery drains very fast when it's not connected to a charger. Also, the whole computer gets super slow and hard to use after unplugging. This is making using the laptop almost impossible for me. I could really need some help fixing this!

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AdamKoudy
Senior Member
740
08-02-2026, 08:49 AM
#2
I just bought a used HP Probook 4520s. The first step is to try swapping out the battery to see if that fixes things. If you can take it to a shop, check the power delivery area on the motherboard for any strange signs of wear or damage. Also, look at your RAM sticks. For your laptop, I suggest replacing the hard drive with an SSD instead of the current one.
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AdamKoudy
08-02-2026, 08:49 AM #2

I just bought a used HP Probook 4520s. The first step is to try swapping out the battery to see if that fixes things. If you can take it to a shop, check the power delivery area on the motherboard for any strange signs of wear or damage. Also, look at your RAM sticks. For your laptop, I suggest replacing the hard drive with an SSD instead of the current one.

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SamaMonster
Member
178
08-19-2026, 10:27 PM
#3
Thank you for the tip, I'm sure to check it right away! But I still don't get why my computer turns off or acts strange whenever the battery is supposed to be all good.
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SamaMonster
08-19-2026, 10:27 PM #3

Thank you for the tip, I'm sure to check it right away! But I still don't get why my computer turns off or acts strange whenever the battery is supposed to be all good.