Question about Compaq Presario Notebook

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Battery does not charge

Battery will not charge while the computer is turned on with AC adapter connected. It will only charge when PC is turned off and then only intermittenly.

Have a Toshiba M35series laptop. Same problem. With AC connected battery will only discharge and will eventually discharge completely. If I turn off the PC or put it in hibernation it will charge, but only intermittently. Swapped out the power supply thinking it might be the connector but the new supply had the same issues as the old one. Thought about taking the battery out completely to see if it will run on AC only but have not tried this yet. Battery seems to discharge fine once it has been charged so I have tentatively ruled that out as the problem. I have same exact prob,what i think is happening is the heat that is being blown out is overheating the battery.

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  • bucky19103 Oct 12, 2008

    both components work so it might be the third.if it is my options are limited since my warranty has just ran out.

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  • 84 Answers

Hi Bucky,

Regarding the issue you are having there are 3 possible problem here. It's either the ac adapter, the battery and the motherboard of your system.

To determine the cause of the problem you may try the following steps below.

1. Try turning on your system using the ac adapter only afterwards try using the battery.
2. Try connecting the ac adapter to a different power outlet and check if that could cause a problem as well
2. If the system works with both component then it could be an issue with the system board. If this the case you might need to call your computer manufacturer and check the latest version of BIOS you have. check also if the system is under warranty for part replacement.

Keep me posted.

Thanks.

Regards,

Jeff

Posted on Oct 11, 2008

  • Jeff R
    Jeff R Oct 12, 2008

    Hi,

    Try to check if you can update the BIOS of your system. Let me also remind you that if the BIOS update is not properly installed this could cause a major problem with the motherboard. You may encounter an issue in which your computer will not turn on anymore.

    Thanks. keep me posted


    jeff


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Troubleshoot the power supply
To verify that the AC power supply is functioning properly, follow the steps below.

1.
Plug the AC adapter directly into a functioning wall outlet, and plug connector into the computer. Do not plug into a power strip, surge protector or secondary power source.
2.
Verify the following operation and take the appropriate action:
*
That all power cord connections are secure.
If the AC adapter connection to the notebook is loose, the connector may be damaged and require repair. Contact HP service and support for further assistance.
*
That the power button or power LED is lit when the computer is on.
*
That an LED on the AC power supply adapter is lit when plugged into an AC wall outlet (not available on all AC power supply adapters).
*
That the AC power supply adapter is the correct type.
Different notebook models require different AC power supply adapters. You will need to know the Product Number of your notebook to determine the Part Number of the replacement part. Click Start > HP Help & Support to view the product name, product number, and serial number that you'll need to have to speak with HP Customer Service.
View the See Also section for information about locating HP Help & Support in your operating system.

Troubleshoot the System Board
If you've verified that the AC power functions properly, troubleshoot the PC's system board by following the steps below.

1.
Remove the battery, and keep the notebook connected to AC power.
2.
Press and release the Power button to start the computer.
*
If the notebook PC powers on , then the AC adapter and system board are functioning properly. Go to Troubleshoot the battery .
*
If the Power LED is off , then the AC power adapter needs to be replaced. Contact HP Service and Support for further assistance.
*
If the power LED is on , but the notebook PC does not power on, then the notebook PC needs to be repaired. Contact HP Service and Support for further assistance.
3.
Shut down Windows by selecting Shut Down from the Start Menu.

Troubleshoot the battery
If you have verified the AC power supply and system board are functioning correctly, troubleshoot the battery by following the steps below.

1.
Insert the battery into the battery compartment on the bottom of the notebook PC.
2.
Connect the AC power supply and allow the battery to charge for 15 to 30 minutes.
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3.
Unplug the AC power adapter cord from the notebook PC.
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Press and release the Power button to start the computer using only the battery as the power source.
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If the PC does not power on, then the battery needs to be replaced. Contact HP service and support for further assistance.
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If the notebook PC does power on, the battery is functioning properly.
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Total Power Failure When Using a Battery
If an AC adapter is not connected to your computer, the computer's power source
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1. Turn off the computer and peripherals, and disconnect them from AC power.
2. Reseat each installed battery by removing it and then replacing it.
3. Turn on the computer. Does the green power indicator light up?
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Yes. Continue to step 4.
No. Use the AC adapter to connect your computer to AC power. If the computer
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4. Does the battery indicator flash amber or show a a steady amber light?
Yes. The battery needs to be charged. Go step 5.
No. Go to step 7.
5. Connect the computer to AC power, and fully charge the battery.
For instructions, see the topic titled "Charging the Battery" in the online
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6. As the battery charges, does the green battery indicator light up?
Yes. Go to step 9.
No. Go to step 7.
7. Is the battery indicator flashing green and amber?
Yes. Your computer may be in a hot environment. Charging the battery in this
condition may affect the life span of the battery. Continue to step 8.
No. The problem is resolved.
8. Disconnect the computer from AC power. Is the the battery indicator still
flashing amber?
Yes. You may have a defective battery. Continue to step 9.
No. The problem is resolved.
9. Remove the battery, and press its test button. Is the uppermost indicator in
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Yes. You have a defective battery. Continue to step 9.
No. The problem is resolved.
10. If a spare battery is available, fully charge it, and then install it in the
computer.
11. Turn on the computer. Is the power indicator off?
Yes. Your original battery is defective


good luck

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