Battery and Charging Issue

aliOo · ‎10-24-2014

Hi,
I'm having issues with my computer not charging. I have an

HP Pavilion dm4t-2100 CTO Entertainment Notebook PC

Model: LX124AAR

When the problem first occurred the charging status was "Plugged in, and Charging" and the light near the plug was orange. However the battery charge was decreasing. After a few minutes, the status changed to "Plugged in, not Charging". My HP battery eventually drained and I was dependent on the AC adapter.
I ordered a new plug and a new battery.

I've run the following tests:

-----
With the Original Battery-
(most of the time when the Battery is taken out (while turned off) then put back in, the status on the desktop is "plugged in, charging" for at least a few minutes and the LED light is flashing.
*note that the original battery has no charge

HP Battery Test at F2 Startup Results:

Primary - Not Installed
Battery Test : Passed

HP Support Assistant (Desktop) Battery Test Results:

Status: Unknown (90)
"Primary Battery check unable to access battery"

----

Tests with the New Battery
(When new battery is connected the LED light is orange and status is "plugged in, charging")
*battery charge began at 50% and is now 48%

HP Battery Test at F2 Startup Results:

Primary - Replace (42)
Battery Test: Failed
Failure ID: U4JD51-000799-XD6V4K-C09803
Product ID: Lx124AV

HP Support Assistant (Desktop) Battery Test Results:

Status: Replace
"reporting failure"
U4JD51-000000-XD6V4K-C0BB03

Info from "Advanced" window :
cycle count 1/300

8800 mAh
Remaining: 4073mAh
Current: 0mA
Status:82
AC Power: Yes
CT Number: NA
Current State: Charging (48%)

___________

After reading problems from other people I've also run a hard disk check and the tune up check at the F2 Diagnostics start up screen

I read in another post that it could help to Flash/Upgrade the BIOS

I installed the HP Notebook System BIOS update from the HP site, turned off all other programs and ran the update.
At this point i had the original battery installed in the computer and the computer was plugged in.

As the update was running, my computer appeared to be restarting (intiated by the program). However before it seemed to turn off all on its own, there was a small electric click noise, and the screen went black. The LED HP light remained on, the internet light was on but orange, and the Cap Locks light was blinking -1 blink every few seconds. Unsure if this was part of the BIOS Flash I left the computer in that state for a few hours.

Upon returning I saw it was still in the same state, so I looked up the problem. I then followed directions to turn the comptuer off, unplug the AC adapter, and take out the battery, then hold down the power button for 15 seconds - replace the battery and turn back on.
When I did this, the computer started back up properly.
However it no longer starts up with the original battery connected. only with the new battery. And the original no charging problem still exists.

Unsure what happened with the BIOS Flash , I re-read the instructions and updated again. This time with out any battery connected to the computer. The BIOS update completed.
However, now, I still have the orginal problem and my old battery will no longer work with the computer (it turns on, black screen, LED lights and Fan on, blinking cap locks, 1 blink every few seconds)

Thanks in advance for any time and help!

KNRK · ‎10-24-2014

Dear Customer,

Welcome and Thank You for posting your query on HP Support Forum

It looks like your Notebook is not charging the Battery, We will surely assist you with this issue

Please perform below shown steps to resolve the issue:

Step 01. Click on the Start Button

Step 02. Type "Device Manager" in the start search box & open the Device Manager

Step 03. Look for Batteries and expand it by click on the + symbol on the left

Step 04. Right Click on "Microsoft ACPI Compliant Control Method Battery" & uninstall

Note: This Battery driver will get re-installed automatically when you restart the Notebook again

Step 05. Please Shutdown the Notebook

Step 06. Please remove the Battery and unplug the Power Adapter

Step 07. Press and Hold the Power Button for full 1 Minute

Step 08. Go ahead and put back the Battery and connect the Power Adapter

Step 09. Look for "Plugged In Charging" message on the Battery icon

After performing all the steps if you are facing the same issue still, please perform three more steps:

1. Run a Battery Check in HP Support Assistant[Install the Software if it's not available]

Note: Replace the Battery If Health Check Status shows Replace

2. Update the latest BIOS for your Notebook from HP Support Site

3. Please check your Notebook with a known good Power Adapter & Battery from a different Notebook

Note: If a known good battery is also not charging we need to replace the system board

How to improve the life of a Battery:

1. It is not advisable to use the Notebook when the Power Adapter is connected

2. It is not advisable to keep the Power Adapter plugged in even after the Battery is fully charged

3. You need to let the battery drain completely before charging again

4. Power Plan should be set correctly for extended battery life

5. Please keep the Screen Brightness at lower level

6. Please turn OFF Wi-Fi Connection when not in use

7. Please remove the CD/DVD's from the Optical Drive when not in use

Testing and Calibrating the Battery (Windows 😎

http://support.hp.com/us-en/document/c03325217

Testing and Calibrating the Battery (Windows 7)

http://support.hp.com/us-en/document/c00821536

Calibrating the Notebook Battery (Windows Vista)

http://support.hp.com/us-en/document/c00817650

Hope this helps, for any further queries reply to the post and feel free to join us again

**Click the KUDOS star on left to say Thanks**

Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Thank You,

K N R K

I work on behalf of HP

I am an HP Employee

aliOo · ‎10-24-2014

Thanks for the help,

I followed the steps, I put the original battery back in and plugged in the power adapter to start it back up (step 08) and I had the same problem as before with the black screen and LED lights.
I tried again with the new battery, it powered up as before, and again says plugged in, charging. But it does not appear to be charging and the battery test still says Replace and gives the same error code as before.

KNRK · ‎10-24-2014

According to the message you have recently posted I would like to confirm that this could be a hardware issue and I strongly recommend you to immediately Contact HP Technical Support over the Phone for further assistance without any delay to get your Notebook diagnosed and serviced by an authorized HP Certified Engineer