Very Battery Calibration

[faaizan]

How i can verify battery calibration in 2022.

Provided video and article on battery calibration by hp didn't work for me.

What's the steps for verify battery calibration for my HP elitebook 840G4?

Could anyone please help me in this ?

[ub6424]

Hello @faaizan 

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

Please < calibrate > your battery ... this way

(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 your results

[faaizan]

So if i calibrate battery in this way, Will i still need to drain battery and charge it to 100% and plug in charger for at least 2 hours?

Or mentioned steps are enough to calibrate battery ?

[ub6424]

---

@faaizan wrote:

So if i calibrate battery in this way, Will i still need to drain battery and charge it to 100% and plug in charger for at least 2 hours?

Or mentioned steps are enough to calibrate battery ?

---

First perform my suggested method.

[faaizan]

Your suggested method didn't work for me.

When i hold power button for 30 seconds and after connect the charger the charging light turn into white and within 1 minute charger light turn off automatically and when i on laptop and log jn to windows the battery stuck at 98% and not charging although i have connected the charger but still not charging and no light on.

[ub6424]

Hello @faaizan 

Let me check your current system configuration.

(1) Run    msinfo32

- Select <System Summary>:

--->>> Copy/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 your results

[faaizan]

OS Name: Microsoft Windows 10

Version: 10.0.19044 Build 19044

System Model: HP Elitebook 840 G4

System SKU: 1LP07UC#ABA

Processor: Intel Core i5-7300U CPU @ 2.60GHz,2712MHz, 2 cores, 4 logical processors

Bios: HP P78 ver. 01.29, 12-jul-2019

[faaizan]

Please help me out from this, I'm very much worried 

[ub6424]

Hello @faaizan 

(1) Create Windows system <restore point>

How to Create a System Restore Point on Windows 10 or Windows 11

(2) Download and install BIOS Update

HP Notebook System BIOS Update (P78)

01.43 Rev.A

12.3 MB

Aug 15, 2022

Download

Why should you install the update ?

https://support.hp.com/us-en/document/ish_4123786-2338478-16

Quote: "

Updating the BIOS is recommended as standard maintenance of the computer. It can also help resolve the following issues:

• An available BIOS update resolves a specific issue or improves computer performance.
• The current BIOS does not support a hardware component or a Windows upgrade.
• HP Support recommends installing a specific BIOS update.

"

(3) Reboot

(4) Let BIOS be installed until it's completely done !

(5) Download and install / update

Intel Management Engine Driver

2205.15.0.2623 Rev.W

272.4 MB

Apr 18, 2022

Download

HP Battery Health Manager BIOS Setting Update

1.0.2.1 Rev.A

0.5 MB

Nov 20, 2020

Download

Intel Management Engine Firmware

11.8.92.4222 Rev.A

11.6 MB

Apr 18, 2022

Download

(6) Restart Windows

(7) Test your notebook

(8) Please report your results

[faaizan]

I have update bios and other mentioned drivers as well. Battery continue to start charging and charged fully 100% but when i check battery in hp support assistant it will show Primary Battery: Calibrate. It means battery still need to be calibrated.