HP 11-n034tu Battery Issue

[DarioM]

Like many others, I have an 11-N034TU that says "Plugged in, Not Charging"

Observations:

On plugging in AC Adaptor, charge light goes orange for about 2 or 3 seconds, then goes steady white.  After approx 30 seconds, charge light begins blinking white

Steps Taken:

Removed ACPI adaptor from Device Manager, shut down, unplugged AC adaptor and held power switch for 30 seconds to fully discharge system capacitors (cannot remove battery as battery is a fixed internal battery)

Updated everything - Including BIOS (Running F.2C Rev A)

Performed UEFI checks on Battery, Output as follows:-

        Charge Capacity: 91%                           Battery Status: OK(4)

        Warranty Type: 3 Year                          FAILURE ID: OK

        Cycle Count: 170                                     Terminal Voltage: 5797 mV

        Manufacturer: 33-42                             Design Voltage: 7600 mV

        Battery Age: 926 Days                          Cell Voltage 1: 2500 mV

       Serial Number: 0**** 08/25/2014    Cell Voltage 2: 3297 mV

       Temperature: 29 C                                   Cell Voltage 3: 0 mV

       Design Capacity: 3820 mAh                  Cell Voltage 4: 0 mV

       Full Charge Capacity: 3481 mAh         Status: 4AD0

       Remaining Capacity: 0 mAh (0%)        AC Power: Yes

       Current: 0 mAh                                            CT Number:  6EAWL*******9K

I do not pretend to know about battery construction, but the Cell Voltage 3 & 4 being 0 and the remaining capacity and current being 0 along with the blinking charge light tends to make me think that despite the battery reporting as "OK" this particular battery is dead..... am I correct in that assumption?

Further to this, the initial screen says that following the battery check, I can perform a battery calibration; but after the battery check, there is no option anywhere on screen to perform a calibration.

Oh - and lest I forget - if AC adaptor is removed, machine shuts down immediately, so cannot perform any checks or tests with AC adaptor removed

Any words of wisdom please?            

[The_Fossette]

Hi @DarioM

Welcome to the HP Forums!

I appreciate you taking the time to share your concern and thank you for using this forum, it is a great place to find answers.

I reviewed your post and I understand that you are having issues with the battery on your computer.

I’d love to help!

Awesome job on diagnosing the issue correctly and performing smart troubleshooting before posting your question on HP forums. Kudos to you on that score.  It is a privilege to work with tech-savvy and technically competent customers like you and we greatly value your business with HP. It is a genuine pleasure to share this platform with you. 

I see that you have done all the troubleshooting to fix the battery issue. However, I see that you have not calibrated the battery.

Refer to the below link and calibrate the battery and test.

http://hp.care/2fFubJV

If the issue persists, I recommend you to contact phone support to further diagnose the issue.

Let me know how it works.

To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.

Take care now and have a splendid week ahead.

Cheers!

[DarioM]

The issue I face is that using both UEFI test and using Spport Assistant, neither give me the option to calibrate battery.

both report the battery as OK and do not report as needing calibration, therefore I cannot calibrate battery.

I cannot unplug AC and run power down, as unplugging AC immediately switches device off.  The machine seems to report battery as being OK but is unable to draw power from it or charge it.

i have done a UEFI test of System board as well and truly that reports as no errors.

this issue is vexing .... Is it indeed a family led battery or is it that the machine for some reason simply cannot access the battery?

again, despite reporting as "OK" I do ask if Cell Voltage 3 and 4 reporting 0 mV is an indication of something wrong?

once again, I have followed instructions regarding calibration to the letter, but do not get option to calibrate battery.

further, I note in UEFI test I do not have option to test AC Adaptor .....

[The_Fossette · Accepted solution]

Hi @DarioM

Thank you for posting back.

I personally believe that the battery is gone bad and needs a replacement as you have performed all the troubleshooting to fix the battery issue. I recommend you to contact phone support and check the available service options.

Follow below steps to contact phone support.

Step 1. Open link:  www.hp.com/contacthp/
Step 2. Enter Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"
Step 4. Scroll down and click on HP contact options - click on Get phone number

Take care now and have a splendid week ahead.

Cheers!