Question about Dell Latitude C640 Notebook
MY dell tatitude c640 battery is not charging, it power by AC (meaning the charger), the battery is charging in another latitude c640 laptop. what is the fault, and how can i repair it
Posted by Anonymous on
Chances are the actual power jack in the laptop has gone bad. this is a common issue with lots of laptops and every dell laptop (4) that i have owned http://www.ebay.com/itm/like/281152320878?ul_noapp=true&chn=ps&lpid=82
Posted on Nov 19, 2015
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Posted on Jan 02, 2017
SOURCE: 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 defaults.save changes then exit.
ps: defected processor could be the cause
Posted on Nov 14, 2007
SOURCE: Dell c640 battery problem
This sounds like it is not getting enough amperage from the power brick- check which model power brick you have. I'm not 100% sure but the pa-6 family may not provide enough power to charge and run the laptop at the same time. the PA-9 should- if it's rated at 4.51 @20v - that works out to about 90watt. If you DO have a 90 watt power adapter and it's still giving the orange then red flashes- and will not charge when the laptop is off- you probably have either a bad battery, or the motherboard is faulty and has a bad charge circuit, or a loose power jack. What does pressing the little button next to the charge indicator on the battery do? Flashing every other led- 1,3,5 is BAD, so is 1 and 5. You also might have a 3rd party refurb- that had the guts torn out and is not properly "seen" by the laptop.
Posted on Dec 18, 2007
SOURCE: Dell c640 charging problems.
Instead of spending alot of time trying to do something that could potentially harm your laptop..why not just buy a power supply?
You can get one here Click here for about 16 dollars. That's a great deal they are usually about $60 and its a Dell brand not some off brand.
Posted on Jan 19, 2009
What needs to be done is the jack that your adaptor plugs into has solder points underneath it. All the solder points need to be resoldered to make sure that there are no cracks in the solder that are preventing the jack from charging your battery.
After this is done if the laptop still isn't charging then if you know for sure your using the correct ac adaptor with your laptop then at that point the moterboard would have to be replaced.
Posted on Jul 31, 2009
Had the same problem, My other Dell charger would work fine but the original one that came with this laptop would throw an error message that the Charger wasnt recognized. None of the suggestions on the forums worked.
I held the chord by the circular flex thing at the end, and pushed in the power pin with force into the laptop, held it for a few seconds and now it works fine. If you push the pin slow and gently into the laptop, it doesnt recognize the adapter. I think the problem is either with the power chord connections inside or with the adapter inside the laptop. Try it!
Posted on Aug 25, 2009
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