Question about Dell Latitude C640 Notebook

1 Answer

Power & Battery in a Dell Latitude C640

As I read here before, I have the same problem, seems to me that the battery was too long without use or charge, so now is charging 100% and a life of 1 hour and 51 min (thats what WinXp says), but seems to me that eventhough charges the battery but the notebook not works with just the power cord or brick, is some where a setting that have to be changed or do I have a problem with the board? Any light will be apreciated!!

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 188 Answers
Re: Power & Battery in a Dell Latitude C640

If the laptop does not run plugged into AC power, then you may have a defective power brick or a power problem with the laptop.

I would try another power brick. If that doesnt do it then your power jack inside the machine may be damaged and usually that means the motherboard is cracked. The only fix in that case is a new motherboard ($150-$200 plus labor) OR you can get the Dell C PORT II port replicator which has its own power jack.

Hope this helps!

Posted on Dec 28, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

2 Answers

I live in Karachi, Pakistan. I have dell latitude c640 laptop. the problem is that it works well during the charging. other wise it consumes all power within 10 minutes. looking forward for your...

Probably battery problem. If you can find someone who owns the same lapto, try her/his battery on yours and see what happens. Otherwise, replace it with a new one.

May 16, 2011 | Dell Latitude C640 Notebook

2 Answers

Dell c640 laptop when not power on when using ac

The battery has a dry cell causing this so replace the battery

Jun 20, 2010 | Dell Latitude C640 Notebook

1 Answer

My dell latitude c640 keeps cutting off. i didn't receive any instructions when i purchased it off Ebay. What do you think the problem maybe?

If it is plugged in when it cuts off. I would say the mainboard is bad. If it does it when on battery power. Its probably just running out of battery.

Aug 14, 2009 | Dell Latitude C640 Notebook

1 Answer

Dell latitude C640

You might want to try another AC adapter. If it works, then call up Dell and have replacement on the AC adapter. Otherwise, call up Dell and have them check your motherboard. If the warranty is still active, then can still definitely replace that.

Sep 29, 2008 | Dell Latitude C640 Notebook

1 Answer

Dell Latitude C640 Laptop

get to the main board of ur system there is a jumper near the battery .
change its position while power is off and get it back to its previous position. this way u will reset cmos to default.
if the computer starts hit delete to enter setup and load system changes then exit.
ps: defected processor could be the cause

Nov 14, 2007 | Dell Latitude C640 Notebook

Not finding what you are looking for?
Dell Latitude C640 Notebook Logo

161 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell PC Laptops Experts


Level 3 Expert

1038 Answers

Sudeep Chatterjee
Sudeep Chatterjee

Level 3 Expert

3267 Answers

Donna Sander

Level 2 Expert

193 Answers

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

Answer questions

Manuals & User Guides