Question about Compaq Presario R3000 Notebook

1 Answer

Compaq presario c-300 charging system

The unit will not work when pluged into ac without batery installed. When both battery and pluged in the unit doesnt seem to be charging the battery although it says its charging. However if you unplug the unit the screen dims as if it was working off ac power. any suggestions will be appreciated.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Expert
  • 72 Answers
Re: Compaq presario c-300 charging system

That is normal.. you can change that dim setting to power option in control panel.. it really dim when unplug.. but you can change that if you want, so it will not dim.

Posted on Dec 30, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Does the battery have to work for the lap top to work when pluged in on the Presario R3000?

Check your AC adapter if still work. Battery don't have to work when is on AC.

Dec 26, 2011 | Compaq PC Laptops

1 Answer

Compaq presario c552us will not charge battery


Jan 09, 2010 | Compaq Presario C552US Notebook PC

1 Answer

Battery won't charge

This is true, you will not be able to charge the battery without the correct charger. For mostly all laptops, when the charger is not maintaining a charge, it is time for a new one. However, it does not have to be the manufacturer's adapter, but I recommend purchasing the battery made for the Compaq Presario M2000 Notebook. has decent deals on these adapters.

I hope this helps. Please let me know if you have any other questions.
Thank You, Raph30

Jan 25, 2009 | Compaq Presario M2000 Notebook

1 Answer

Batery hang problem

batteries have a charge memory in the, when you purchase a new battery the best thing to do is to fully drain the battery before charging it up, this will tell the battery that it needs full charge, if you charge the battery before this it will only charge the battery to a certain percentage.
what you need to do now is find a way to fully discharge the batteries

kind regards

Dec 23, 2008 | HP Compaq Business NX9110 Notebook

1 Answer

Compaq Presario needed a new battery was installed labtop will not charge up!

When you install a new battery and remove a battery always make sure the laptop is completely shut off and have the power cord removed so that you avoid any possible power surge.

Batteries generally don't last much longer than a year and I have found removing the power cord or battery when it is off to be a good practice.

Before you charge a battery make sure it is run most all the way down. Recharging a battery when it is not run down can give it a memory and you may only be able to charge it up to the point you started charging it.

Anyway, if the computer won't charge a new battery then you could have a bad motherboard. To be sure try another battery.

Sep 09, 2008 | Compaq Presario Notebook

1 Answer

Power problem

All batteries lose their ability to store power after every recharge. I would say the problem is the battery so get a new battery soon but don't forget to charge the new battery. If the problem is still there after replacing the battery, then my next guess is the laptop.

Aug 02, 2008 | Compaq Presario R3000 Notebook

1 Answer

Compaq Presario 1200 won't charge battery

dear N9YK

you can follow this

If you have a loose connection where you plug in the power on your laptop, or it works intermittently, you could have a bad dc jack. Symptoms
  • Move the power plug and the laptop loses connection
  • Broken or cracked dc jack
  • Laptop won't charge but worked on battery
  • Power LED and battery LED flicker when the adapter tip is moved
  • Battery won't charge
  • Sparks come out the back of the laptop
Why does this happen?
  • Flaw in manufacturer designs
  • Use of universal or non-original ac adapter
  • Lots of plugging and unplugging of the ac adapter
  • Tripping on or pulling the ac adapter cord
or you can check your dc amper in your adaptor




Mar 16, 2008 | Compaq Presario 1200 Notebook

1 Answer

AC/Battery powerup

Well I think if you a tester test the battery if it is fine. It is not absolute sure that the battery is fine because it shows it is fine from the laptop.

If the battery is fine then there is something wrong at the connection of the battery with the motherboard.

Jan 28, 2008 | Compaq Presario 2170US Notebook

1 Answer

Compaq presario does not turn on

Your battery is dead. You need to get a new power adapter. The battery isn't charging. The AC adapter went south. If the laptop is under warranty, you can get one from Compaq. Or, what I would do is shop on the internet and order one. Whats the numbers on the ac adapter? I'll help you find one.

Jun 30, 2007 | HP Compaq Presario V2000 Notebook

Not finding what you are looking for?
Compaq Presario R3000 Notebook Logo

Related Topics:

143 people viewed this question

Ask a Question

Usually answered in minutes!

Top Compaq PC Laptops Experts

John mullen

Level 2 Expert

229 Answers

 Mike M
Mike M

Level 3 Expert

3320 Answers


Level 3 Expert

2598 Answers

Are you a Compaq PC Laptop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides