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Bad battery or bad motherboard?

I'm a lab coordinator at an elementary school. We have 64 dell D510 latitude laptops. They are four years old and now out of warranty. The batteries started dying, I couldn't get them to hold a charge. I purchased new batteries and they would work for a few days. I was told by my IT dept that it is a bad motherboard and not a battery problem. Can this be true? How can 12 motherboards all go bad within in a few weeks. Any ideas? Thanks

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Hi syungewaelte

I had the same exact problem:
1. Old battery led blinking (green or yellow)
2. New battery worked ok for I guess 2 weeks
3. New battery stopped working (not charging)

I already opened the laptop and cleaned it (nothing improved).
My new battery is a DELL original one.

I already checked all the possible parameters with no results. I think we shouls start looking for new laptops.


Posted on Dec 29, 2009

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Most Laptop batteries only lasts a couple of years under normal use. I would say four years old batteries are most likely at the end of its life. But you have to be careful when you buy replacement batteries. Some cheap imports on Ebay don't even have the same voltage as the original batteries. Did you get the batteries from Dell?

Posted on Sep 03, 2009

Testimonial: "Got the batteries from Dell. I'm still confused about the motherboard being the problem with all the computers. Thanks for your help."

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My idea and I've seen this alot, the dc jacks on the laptops become a tad bit loose, what happens is that the solder points on the bottom of the dc jacks crack because they dry out.

To fix that problem you would have to take apart the laptop and get the motherboard out of there and look on the bottom of the motherboard where the dc jack is and with a magnifying glass you'll see hairline cracks.

Best thing to do at that point is to resolder the solder points that hold the dc jack in place, that way its making a solid connection and then the motherboard can charge the batteries properly.

Keep in mind that this won't be the problem for all the laptops so the best thing to do is to have one battery that you know is working and test it in the laptops in question. Whichever ones don't charge the laptop you know that it could be a dc jack problem or could be a problem with the motherboard itself.

It will take time to do this but you'll definitely be able to narrow it down.

Posted on Sep 03, 2009

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If the first batteries died slowly over time then yes this would suggest a depleted battery. If then the secondary batteries you bought were holding charge but didn't keep them for very long, and didn't hold a charge any more, this could be due to one of two things. 

1- the supplier you bought the batteries from shortchanged you with unofficial products

2- the it dept is right and the recharge circuit on the batteries has gone, in all the laptops. Instead of buying a load of new laptops perhaps a new device to charge the batteries is in order. Battery charging stations for laptops are available. Ask your IT dept.


Posted on Sep 03, 2009

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Dell latitude d510 has no power

Please check out the following steps to confirm the real issue:
1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. Make sure the DC jack is not loose or broken. A loose DC jack will need to be re-soldered. A broken one will need to be replaced.
4. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
5. The power button could be bad
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