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Power up problem

When i turn on my computer, it goes through the powerup but then there's a message stating that my battery is low and that i should connect my computer to a power source. the problem is that it is already connected to wall power. When i turn the computer off, the battery charges and it lasts for a little while (with the comp plugged to the wall) but then it shuts down after another message stating that my battery is at critical level appears. when i say shut down, it just turns off. it doesn't go through the power down process. I switched out the ac adapter but it still does the same thing. The computer is 4-6 years old. it has the same battery and on some days, it decides to work on other days, it doesn't. I took the battery out and just tried to run the computer off the wall power but it won't even turn on.

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The DC jack inside the laptop may have a cold solder joint around it or it may be loose all together. When you plug it in watch the charge light on the laptop and wiggle the plug in the jack. If it cuts on and off (the charge light) then the jack is at fault. Also the wires coming from the charger itself could be twisted enough to break inside the insulation. try wiggling the cord as well looking at the charge light.

Posted on Sep 15, 2007

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Your laptop needs a new battery. Buy a new one and have it replaced by a service technician for free.

Posted on Sep 15, 2007


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Posted on Jan 02, 2017

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It sounds like you have a dead battery.
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Hi i have hp 6735s laptop & i it's battery was very good but in last couple days it began to shut down after i plug off the power by 2 or 3 minutes without showing any message to notify me &...

NO OS stated ?Operating system" we cant never ever guess that.
remove the battery , test the PC with no battery?
does it run perfectly now ? yes/no.
if yes and not with battery then the battery is bad or not charged.
this is step 1. of a long process.... PCs are complex
I can not understand your post at all. (cept its power issue)
the full PCs model was not stated,
Is this LT mobile? or always on a desk.
I cant just know how you use a laptop ever.
on desk or in an airplane or at STARBUCK's is 3 different usages.
on a desk? Ill answer, the others are vastly more complex !
DESK bound 110 LT:
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  2. turn on , the same page, "laptop power button turns off PC":
  3. make sure the your software is from HP at your HP support page, we are NOT HP. here.
  4. keep the battery out, of the pc, charge it and park it so when need it not bad or dead. leave it out. run on AC power only.
  5. my wild guess is PC goes to sleep and sucks the battery dry as all do eventually or all do on weak /bad batteries. keep the AC power pack plugged in to wall power all the time. hint hint.
this PC is a very old COMPAQ
HP does not support this now, it's too old (why not upgrade)?
so to fix it , takes tedious steps.
my post above begins this process....

the one thing I cant unstand is this.
plug off? (what? is this)

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