HP NC8000 Power / Battery Problem

Hi Guys,

Got a NC8000 Laptop that runs fine on ac power, will run off battery (currently a 18%) but wont charge.  I pull the battery and power out, then put the ac power back and the charging light comes on for a moment then goes away.

Same when I take power off and pull battery out, then put just the battery back, it blinks for a second then goes away.  Have tried different charger, the result is the same.

Ive got a friend with a similar model and will borrow their battery in the next couple of days to rule out a dud battery........

Otherwise, I guess I am right to conclude that its the power charging circuit.  Is this built on to the mother board on this model laptop.....

Is it repairable ??? (without replacing the entire motherboard).  I love the laptop........i get 4 - 5 hours on wireless out of the battery normally, but It might be better to just cut my losses and buy a new one.....

Any advise ideas ?

webfirmAsked:
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jamietonerCommented:
I would say it was most likly just a bad battery, but if it does the same thing with your freinds known good battery, you would have to replace the motherboard for a bad charger circuit.
webfirmAuthor Commented:
Are you saying the charging circuit is integrated into the motherboard on this model.......

I have been informed some laptops are not......

This might be the more historic laptops though.....

I havent pulled apart the laptop, and the service manual does not say..

jamietonerCommented:
Im not showing a charger board as being an available replacement part, which usually indicates its integrated onto the motherboard.
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PCBONEZCommented:
Typically a laptop battery will last 2 or 3 years.
(They will 'get old' in about the same amount of time even if not used due to chemical breakdown.)
- So if you do get a new battery get a NEW new one.
One that's been on a shelf somewhere for two years might not last very long.

Laptop batteries aren't just battery packs.
They have circuits inside that have to do with monitoring battery condition and charging.
The blinking light you see is (for lack of better words) the system 'talking' to the battery.
(Checking condition/status.)

Odds are you just need a new battery.
.


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webfirmAuthor Commented:
>> Typically a laptop battery will last 2 or 3 years.
>> (They will 'get old' in about the same amount of time even if not used due to chemical breakdown.)
>> - So if you do get a new battery get a NEW new one.
>> One that's been on a shelf somewhere for two years might not last very long.

Got no problems spending the money getting a brand new battery.....just need to make sure it is definately the battery.


>> Laptop batteries aren't just battery packs.
>> They have circuits inside that have to do with monitoring battery condition and charging.
>> The blinking light you see is (for lack of better words) the system 'talking' to the battery.
>> (Checking condition/status.)

Yer i know, the HP battery condition program doesnt work on my model tho.....


>> Odds are you just need a new battery.

Im hoping so.......will find out tomorrow morning when the person with a nc6000 comes in......

anxious wait tho....  I can run it on battery most of the time.....but its just such a hinderance and defeats the purpose of a laptop.

Cheers for putting my mind at a little ease.....will let you know how it goes.......

webfirmAuthor Commented:
just thought i would let you know, pulled a battery from a NC6000.  It worked in my laptop (had to pull the clip off for it to fit), i was also able to charge it.  Then once I stuck my old battery in it started to charge ?!?

I have read about this in forums elsewhere, but it was only concerning Toshibas.

So.......I will purchase a new battery regardless........

Thanks guys....

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