Laptop won't charge the battery

[kharl]

Hi guys!
i recently purchased an used NC4400 laptop for work....

i chose that model because i have several years working with it and is one of the most rock solid laptops i ever have tried...

but this time i think the seller sold me a defective one...

the seller sold me this one without battery and without charger, its ok for the price (70bucks) i already have couple of those batteries around there and some chargers...

when i receive it, i plug it to the ac and after 20 minutes notice the laptop don’t charge the battery, i tried another battery and the same, i decide to try the battery in another nc4400 i have and it charge it fine.... so is not the battery, and is not the power adapter...

i checked the BIOS and it is exactly configured like the others nc4400 i have here.

what is wrong here?

Thanks in advance!

 

[linnemeyerhere]

Well it sure sounds like the issue is with the laptops charger and that's not a good thing, but the laptop runs fine off the ac adapter?

 

[kharl]

Well it sure sounds like the issue is with the laptops charger and that's not a good thing, but the laptop runs fine off the ac adapter?

HI!

Thankls for the answer!

The laptop runs fine with the ac adapter and with the battery, both and separately.
its like there is something that its just not passing the current to the battery

 

[ShamrockRig]

Hi, So it keeps charging with the AC adapter plugged in but it isnt holding charge?

 

[linnemeyerhere]

Hi, So it keeps charging with the AC adapter plugged in but it isnt holding charge?

No it sounds like the OP is charging the batteries off another lappy the same model. But if the lappy discharges the battery and he plugs the adapter in then the lappy runs only off the adapter and won't charge up the battery from this newest purchase.

 

[ShamrockRig]

ahh okay i understand now. Could be a dodgy slot in the battery holder?

 

[linnemeyerhere]

I think you're right always look to the physical connection issues first then go from there. Most connections are spring loaded to make proper contact. So look to that first and then move on to a bad charger second.

 

[kharl]

Hi, So it keeps charging with the AC adapter plugged in but it isnt holding charge?

No, it keeps the charge (its not a battery problem, it does it with other batteries too) but it does not charge it.

 

[kharl]

Hi, So it keeps charging with the AC adapter plugged in but it isnt holding charge?

No it sounds like the OP is charging the batteries off another lappy the same model. But if the lappy discharges the battery and he plugs the adapter in then the lappy runs only off the adapter and won't charge up the battery from this newest purchase.

What is OP?

 

[Golden]

Op = original poster (ie. You)

 

[kharl]

I think you're right always look to the physical connection issues first then go from there. Most connections are spring loaded to make proper contact. So look to that first and then move on to a bad charger second.

Contacts looks pretty good, nothing loose or bended

 

[linnemeyerhere]

So you think that they are making contact when the battery is inserted. Well sorry mate I think your issue then is the charger built into the lappy and that means repair or replacement.

 

[kharl]

So you think that they are making contact when the battery is inserted. Well sorry mate I think your issue then is the charger built into the lappy and that means repair or replacement.

i think yes, they are making contact, the board its kind of cheap, (28-44us dollars) but i was wondering maybe something disconnected inside, some wire some connector... i dont know its weird, because if it were a connector, then it should be able to use (discharge ) the battery, it even shows "charging" the battery in the system...
the board definitely have a problem because the wireless does not work neither, and the card is good, but it does not work under any OS

 

[kharl]

anything?

 

[linnemeyerhere]

At this point it sounds above my pay scale. I would try to get those contact pins pulled out slightly as maybe the charging pin isn't making contact. That's all I have besides replace the mobo with the other working one and if that solves then you know.

 

[kharl]

I just cant believe this.. now was when i had time to purchase a new board and to install it.... and i just cant believe it...

i have handled more than 20 of these little great netbooks and no issue at all, of any type...
and could it be possible to buy a board with exactly the same problem!?
i just cant believe this, after hours of meticulous installation... THE PROBLEM STILL PERSIST!

HOW?

 

[kharl]

if i changed the motherboard, what remain the same, the ram the hdd and the cpu...
i also thought it could be due 64bit operating system and the laptop not being full compatible wiht 64bit (although hap says it is )

i tried with a linux version running from a usb, without ram, without hdd, so i discard ram issue, hdd or 64 bit OS...

whats left? the cpu!?
can the cpu cause that?

help please

 

[linnemeyerhere]

kharl, I'm stumped !

 

[kharl]

yep.. me too. i cant believe i am running this luck... two motherboard with the same very odd issue (i should play lottery or something)

the last test i performed (10 minutes ago), was with amperimeter, the laptop turned off, connected without battery, uses 25ma, with battery 25ma and the numbers didnt move a bit ... i was expecting at least the battery to receive current for at LEAST one or two seconds.. but no, even a trace a of the slightest smallest current .... its something physically broken damaged.. but God.. two boards with the same problem...?

i even test it with both boards outside the laptop's plastic (to discard something from the board i dont know a bended plastic or something that could affect.. [kind of desperate test] but nothing at all

 

[Ranger4]

If the laptop works using the AC adapter & works using a charged battery, then the CPU is not the problem. So the problem has to be the battery charger, either it is faulty or there is a broken wire or connection.
Randomly removing items & replacing them could easily end up causing the laptop to stop working.
At present you can use the laptop with a fully charged battery or using the AC adapter, so at least you can use it.
Buying 2nd hand items is always risky as often the reason they are sold by someone is because there is a problem with it.