Battery Charge Capacity Changing

[xanelcava]

Yesterday, my laptop was displaying 47% battery unplugged but then suddenly shut down and displayed 0% when I plugged it in and turned back on. (This has happened some times before)

I did a battery test in diagnostics and it displayed as weak: Primary_ChargeCapacity 43

I opened it up today to check the battery part number (L76965-AC1) and cleaned the interior a little bit.

I did another battery test in disagnostics and it displayed as okay: Primary_ChargeCapacity 81

Why have the tests given such drastically different readings? Is it really just from cleaning?

Both of the tests said the AC Adapter is also okay. Is there any other part in the computer that could be causing problems? Or the battery is still probably weak? What is the best thing to do?

Thanks

[ub6424]

Hello @xanelcava 

Sorry to hear that you are having problems ... I would like to help you.

Let me check your basic system configuration before we talk about the <battery> ...

(1) Run    msinfo32

- Select <System Summary>:

--->>> Copy/screenshot/paste following key/value pairs:

OS Name

Version

System Model

System SKU ( equals HP product number (p/n) )

Processor

BIOS Version/Date

(2) Please report back

[xanelcava]

Hello, sorry for not replying sooner, I thought hp said I would get an email for any replys for my query.

Image is below.

Just had the same problem again of the computer shutting off at around 40% and then turning back on at 0%, did another diagnostic check on battery again after that and said it was WEAK again (46).

Worth saying that I have also been having a problem with the wifi turning off during sleep that I have been trying to resolve as well but haven't found a fix because a lot of power settings that are supposed to be there are missing. Don't know if this is a related issue at all or worth opening another thread on?

[ub6424]

Hello @xanelcava 

Please < calibrate > your battery ...

(1) Open windows <device manager> and uninstall "Microsoft ACPI-Compliant Control Method Battery" 

- Right click on "Microsoft ACPI-Compliant Control Method Battery"

- Click "Uninstall device"

- Confirm your choice if you see a popup notification

(2) Shutdown notebook

(3) Disconnect charger

(4) Press and hold <power> button for 30 seconds

(5) Connect charger and wait until battery is fully charged 

( check LED indicator )

(6) Start notebook and log in to windows and wait a few minutes

(7) Reboot notebook

(8) Please report back

[xanelcava]

Hello,

Have done all this now

What should I do next?

Thanks

[ub6424]

Hello @xanelcava 

(1) Download and install

HP Support Assistant

9.20.22.0 Rev.A

165.9 MB

Sep 30, 2022

Download

or

HP Support Assistant (Microsoft Apps Store)

or

HP Support Assistant 9.19.52.0

(2) Start <HP Support Assistant>

- Run <Battery Check>

- Click on <Show advanced information>

--->>> Send screenshot

(3) Please report your results

( if serial number and CT Number are displayed, please blur )

[xanelcava]

Let me know if I need to do this on full charge or unplugged or anything like that.

[ub6424]

Hello @xanelcava 

Your battery is not in good shape. 25% loss of total capacity and numerous charging cycles. Think about installing a new battery in the near future.

Kind regards