Why is my Aspire 3 A315-59-556F CPU capping at 10% when charged?

I have a Aspire 3 A315-59-556F, I've had this laptop since March of 2023 and I've discovered this since 2024 when my CPU caps at 10% whenever it is charged and it wasn't always frequent, when i went ahead and had my laptop checked up when it was still in warranty it didn't appear or the technician didn't find the same issue, and so a few months has passed by i recently just discovered it again and now doing it more frequently when i charge my laptop around 2-5 minutes it comes back and caps my laptop at 10% CPU i can't do anything when it is capped everything feels slow on it, and the only way for me to uncap it was only by removing the charging on my laptop. I tried researching for ways but none of them had the same issue that i had.

[Edited the thread to add model number to the title]

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Puraw

https://community.acer.com/en/discussion/723493/why-is-my-aspire-3-a315-59-556f-cpu-capping-at-10-when-charged

Hi, stop and disable Acer Care/Acer Sense Battery optimization/Calibration/80% charge limiting services in Windows Services. This model was released in January 2022 and the battery may have dead cells after 3 years, also if the battery was somehow drained to zero charge the Smart chip inside the battery will have disabled the charging option. Another possibility is the barrel plug adapter (this model does not support a USB-C charger) when you fully insert the DC plug in the laptop power socket you should hear a loud click, if the pin fits loose without a click, the plug/socket is damaged, or the pin has the wrong size. You can test this while the laptop is turned on by connecting the power adapter and wiggling the plug in the socket a bit, if the laptop LEDs react there is a bad contact. To check the condition of the battery, run a Windows Battery Report: paste this in the command prompt: powercfg /batteryreport and open the report with your Edge browser, press Ctrl+P or right click and select "Print to Microsoft PDF", attach the report to your reply, type @Puraw or use "Quote" when you reply so I will get an alert. Although if the battery is only charged to 10% it may not show much.

RussGEG

https://community.acer.com/en/discussion/comment/1335517#Comment_1335517

Battery-Report.pdf

Here is the Battery Report as you have asked @Puraw.

If you don't mind me asking are there any solutions for it? as to what i can do and what i should do and what i should avoid doing?

Puraw

https://community.acer.com/en/discussion/comment/1335519#Comment_1335519

The battery is still OK, but the draining profiles show many power interruptions that IMO indicate a bad contact in the power rail, I recommend taking the laptop to Acer Services in your country or try to find another power adapter with a compatible DC plug and charge with that, did you tested the power plug by wiggling it and observe if the LEDs of the laptop react?

RussGEG

https://community.acer.com/en/discussion/comment/1335521#Comment_1335521

I tried it wiggling the power plug and the LED didn't react or anything and when i plug it, it does make a sound or a click sound so i think it still okay nothing abnormal.

RussGEG

https://community.acer.com/en/discussion/comment/1335521#Comment_1335521

@Puraw I just noticed when i plugged my laptop on charging it is now suddenly blinking? when i wiggled or something nothing has reacted to but now after awhile when i charged it again it had started blinking and I'm not charging, It doesn't appear always and its the first i experienced it

Puraw

https://community.acer.com/en/discussion/comment/1335529#Comment_1335529

Hi, that arbitrary behavior of the LEDs is indicating a bad power rail, you can try one more thing before bringing the laptop (and adapter) to Acer Services in your country for repairs: Power drain + CMOS reset: Open the back of the laptop and disconnect the battery cable from the motherboard. Locate the round CMOS module (with 2 twisted wires Red and Black next to the battery, see picture) and remove the coin battery. Shorten the +/- terminals inside the CMOS capsule for 2 seconds with a bended paperclip and put the coin battery back with the + sign facing up, close the CMOS capsule. Next, press the Power Button on the keyboard for 10-15 seconds, remove the RAM module and replace it with a spare RAM module or just put the original module firmly back in the slot, after that reconnect the battery cable to the motherboard. Close the laptop, plug-in the adapter and try to boot.

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