What method can be used to halt throttling caused by a faulty battery on a laptop running Linux?

F5F Stay Refreshed Hardware Notebooks What method can be used to halt throttling caused by a faulty battery on a laptop running Linux?

What method can be used to halt throttling caused by a faulty battery on a laptop running Linux?

What method can be used to halt throttling caused by a faulty battery on a laptop running Linux?

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FaboLP
Junior Member

4

10-21-2025, 12:08 AM

#1

I have an old Dell laptop, a 6200U model (Inspiron 5559), which means you can expect some limitations. I wasn’t able to locate a suitable battery for it, so I’m using its outdated 10-year-old battery that’s almost dead. If I unplug it, the laptop shuts off immediately. Because of this issue, the BIOS has throttled the CPU, making even starting Windows extremely slow. I use Throttlestop to try and speed things up, but it only pushes the CPU to 300-400MHz. There’s no reliable software for this on Linux, so I’m unsure how to fix the throttling. The BIOS is quite basic, and I haven’t found a solution inside it.

Is there a way to address the throttling at its root cause? I’m planning to install Linux on this machine since Windows would be too demanding. The problem persists even when running without the battery and directly plugged in. Could it be related to the charger or power supply?

F

FaboLP

10-21-2025, 12:08 AM #1

I have an old Dell laptop, a 6200U model (Inspiron 5559), which means you can expect some limitations. I wasn’t able to locate a suitable battery for it, so I’m using its outdated 10-year-old battery that’s almost dead. If I unplug it, the laptop shuts off immediately. Because of this issue, the BIOS has throttled the CPU, making even starting Windows extremely slow. I use Throttlestop to try and speed things up, but it only pushes the CPU to 300-400MHz. There’s no reliable software for this on Linux, so I’m unsure how to fix the throttling. The BIOS is quite basic, and I haven’t found a solution inside it.

Is there a way to address the throttling at its root cause? I’m planning to install Linux on this machine since Windows would be too demanding. The problem persists even when running without the battery and directly plugged in. Could it be related to the charger or power supply?

M

MavrosGR
Senior Member

579

10-21-2025, 07:46 AM

#2

Check out these links:
https://www.dell.com/community/en/c...r-...6a3751802a
and
https://www.amazon.com/40Wh-M5Y1K-Inspir...B094464HXJ
Also, consider these questions:
Have you run a maintenance check on your laptop's internal components? Clearing any dirt or debris from the vents? Upgrading the thermal paste and pads to a better quality? What BIOS version is installed on your device?

M

MavrosGR

10-21-2025, 07:46 AM #2

Check out these links:
https://www.dell.com/community/en/c...r-...6a3751802a
and
https://www.amazon.com/40Wh-M5Y1K-Inspir...B094464HXJ
Also, consider these questions:
Have you run a maintenance check on your laptop's internal components? Clearing any dirt or debris from the vents? Upgrading the thermal paste and pads to a better quality? What BIOS version is installed on your device?

M

mhooper12
Member

59

10-21-2025, 12:05 PM

#3

Thanks for those links, but I reached out to Dell and they confirmed they can supply a charger.
Yes, I opened up the laptop just to try reviving it. It had an SSD and I performed a fresh installation that took over 8 hours because of throttling. I suspected the problem was with the battery since the charging indicator flickered red before turning white and causing the laptop to shut down immediately after unplugging. I tried replacing the battery but it didn’t help. I’m 90% convinced the issue lies with the charger.
The BIOS is very basic, and I couldn’t locate a suitable version. I’ll update the thread once I have a new charger.

M

mhooper12

10-21-2025, 12:05 PM #3

Thanks for those links, but I reached out to Dell and they confirmed they can supply a charger.
Yes, I opened up the laptop just to try reviving it. It had an SSD and I performed a fresh installation that took over 8 hours because of throttling. I suspected the problem was with the battery since the charging indicator flickered red before turning white and causing the laptop to shut down immediately after unplugging. I tried replacing the battery but it didn’t help. I’m 90% convinced the issue lies with the charger.
The BIOS is very basic, and I couldn’t locate a suitable version. I’ll update the thread once I have a new charger.

S

Skilled_Spirit
Junior Member

8

10-21-2025, 12:40 PM

#4

Dell includes a service tag on their devices. Use this on Dell's support portal to access a tailored support page for your laptop. Compare the BIOS version on your current laptop with the one provided on their site. Be aware that if your battery charge never reaches 50% or if you experience unstable power shutdowns, the BIOS update may fail or could damage the laptop's motherboard when power cuts occur.

S

Skilled_Spirit

10-21-2025, 12:40 PM #4

Dell includes a service tag on their devices. Use this on Dell's support portal to access a tailored support page for your laptop. Compare the BIOS version on your current laptop with the one provided on their site. Be aware that if your battery charge never reaches 50% or if you experience unstable power shutdowns, the BIOS update may fail or could damage the laptop's motherboard when power cuts occur.