Aspire A515-51-3509 freaking out cycling charging on/off every 10-30secs & beeping

Aspire A515-51-3509 laptop. Battery went down to zero or near zero and laptop turned off when the power cable got disconnected from wall outlet and I did not notice. After re-plugging the power supply, when battery got to about 70% charge, the laptop started to freak out cycling the charging on/off every 10-30 seconds (and beeping each time) and it won't stop or charge to 100% anymore.

Battery is good as I still get 3h+ of use with the 60-70% charge. I also ran the battery test from ACER Care Center app and it shows battery health as GOOD.

I tried draining the battery again twice, and pressed the battery pinhole rest button for 30 seconds to reset based on other posts. Still no luck, gets to about 70% charge and starts to freak out again.

How do I resolve this huge annoyance?

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Puraw

https://community.acer.com/en/discussion/699363/aspire-a515-51-3509-freaking-out-cycling-charging-on-off-every-10-30secs-beeping

If you have the battery charging limit feature in Acer Care enabled, disabled that or uninstall Acer Care Center and also disable the Service as this remains lurking in the background/registry even if uninstalled. Also uninstall any Battery Monitor bloatware if you installed this. Disable Hibernate and Fast Startup and reset Power Plan to factory defaults. Reset BIOS with F9 in BIOS and save settings, exit BIOS and reboot to Windows, uninstall the two battery drivers and reboot.

If this does not fix it, you have a damaged battery/dead cell and I recommend replacing the battery.

StevenGen

https://community.acer.com/en/discussion/699363/aspire-a515-51-3509-freaking-out-cycling-charging-on-off-every-10-30secs-beeping

Check if the DC-IN side plug is not damaged and later on and after you open the laptop, check if the check if the DC-IN plug/cable is plugged in properly to the mainboard or its not shorted. If all is ok, then do a hard reset by first taking the ram and HDD out, afterwards remove the seventeen (17) screws securing the lower case to the upper case and then take the back cover off, and then take the main battery out, disconnect the RTC/BIOS battery and shorts its mainboard plug +&- pins to reset CMOS, leave the laptop like that preferably overnight and connect everything back together in the morning and see if the charging cycle comes back to its normal and 100% cycle. If not then you have a fault within the charging path of your laptop that needs an experienced technician to look at and pinpoint where the fault is at, as doing a reset or anything else will not fix your laptop. Good luck.

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nowxtnct

Thank you Puraw & StevenGen fur suggestions.

Here is what I did based on your suggestions to date and may have more clues as a result.

I uninstalled AcerCare (I only installed it after I had the issue based on some searches suggested it)
I do not have any other battery monitoring apps to uninstall (my battery saver is off in Battery settings)
I did the AC Adapter deletes from Device Manger and rebooted
At this time, I thought things got fixed as the PC kept quiet and kept charging past 70%….. until it reached 91% charge. Then resumed the beeping. I tried the AC adapter deletes and reboot again, but did not help. Got to 92% before it beeped again.

At this point I looked up the user manual for that the LED battery light indicators mean: Indicates the computer's batterystatus.Charging: The light shows amberwhen the battery is charging.Fully charged: The light shows bluewhen in AC mode.

In my case, I recall the indicator was flashing amber when not cycling on/off (no definition for it in the manual) before taking steps 1-3. Then after deleting the AC adapters in Device Manager, it toggles from full amber (charging) to no light at all (as in the case when adapter is unplugged). I have not seen the battery light turn blue (fully charged) per manual yet.

As I was typing this, and the PC kept increasing the beeping interval but it got to 93%, then to 94% and that was about it. At 94% it cycles the charge on/off every 10 secs and would not go further. I repeated step 3 again, with no luck - still maxing out at 94%.

I disconnected the plug until it got to 93% and tried charging again with the cycling every 10 seconds… .got to 95%…. to 97% after about 25mins. Let it go to see if it hits 100%. After about 30 mins, it got to 98%, stopped beeping but the battery LED is blinking orange again with try icon indicating power is plugged in but not charging.

I will try step 3 again tomorrow and see if can get the battery to 100% to see what happens and then try StevenGen's suggestions if no other luck.

I hope the new details can help further diagnosis for a resolution.

Puraw

https://community.acer.com/en/discussion/comment/1255833#Comment_1255833

You did not state a Bios reset, disable Hibernate and Fast Startup and reset Power Plan to factory defaults. Do these things too. Most of your W10 drivers are from 2017 and how old is your battery, if 5-6 years you should replace the battery even if still working a cell may be unstable. Adapter is another issue, find another power adapter with a compatible DC barrel pin and see if the charging improves. Are you running Windows11, upgraded or a Clean install?

nowxtnct

Hi.

I did not reset BIOS initially (but just did so now, see below). I did disable Hibernate and Fast Startup and reset Power Plan to factory defaults earlier - forgot to state that.

The AC drivers that I delete in device manager install themselves somehow after a reboot without any prompts.

I am still running Windows 10 Pro 22H2 installed in July of 2020. I don't recall if this was upgraded from original that came on PC or of I wiped it clean and installed from scratch.

Today, after re-powering the PC, I let it drain to 95% and it did charge to 100% and the blue battery light came on. After some time the computer again started cycling the power on/off even at 100%.

I reset bios to defaults and saved, uninstalled the AC drivers again and rebooted. Charging from 98% to 100% went fine, then again started cycling the power on/off even at 100% with blue led light on.

I think my battery is original… the PC tray icon shows 9 hours of use left at 100% charge - I don't think I recall ever seeing that that high…I think it used to be like 6h at most.

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