AC Adaptor input issues (fries cord, won't charge computer)
I have an HP Laptop and have been through 3 AC adaptors. I'm starting to think the issue lies with my computer. When I plug in the Ac Adaptor it will work for a week or so and then the plug seems to get fried and I have to hold the cord in place in order to charge the computer. Sometimes I can hear an electric spark but thats rare. Could the input for the ac adaptor be fixed or does the computer need to be trashed? PLEASE HELP. Need this computer for school work.
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It is unfortunate that the computer is not being charged. You may want to try following the below steps which might help:
(1)Try using a known good AC Adaptor and check if the same issue happens.
(2)Try wiggling the AC Adaptor cord to see if that makes a difference.
(3)Check if the AC Adaptor is getting detected (Like a 60W or 90W) in BIOS (F2 at startup).
(4)Hover the mouse over the Battery on the status bar and see if there is any error message like Not connected or Plugged in not charging, etc appears.
Remove the battery and plug the ac adaptor in check wethere the light on the port where you connect the ac adaptor glows or not, if no then check the wethere the ac adaptor is getting warm or not after you plug it in for few minutes if not then ac adaptor has to be replaced. If the light on the port is glowing then it is likely that the power supply of the notebook has gone bad as it is not able to switch to ac adaptor or the port where you connect the ac adaptor to the notebook has a short circut when the acadaptor pin is connected , better try with a different ac adaptor to be sure wethere the issue is with ac adaptor or the notebook. My best wishes
This is a tricky issue, it's either a problem related to the battery or the adaptor.
Try removing the battery and just plug in the adaptor and see if the computer will boot. If it does then there's a problem with the battery and you just need to replace it, if it doesn't then there's a few other things it could be.
The two most likely options is that the adaptor is bad, or the AC port on the computer has become loose. Most of the computers I've repaired that had these symptoms was that the AC port was bad if the battery wasn't. The best way to test this is to plug in the adaptor and just see if it wiggles around a lot, if it's loose then it might not be connecting to the board correctly and will need to be soldered bad on. If it's not loose then the adaptor might be bad, you can test another adaptor on your laptop or that adaptor on someone else's but be carefull, I can't stress this enough, if you're going to switch adaptors you have to make sure that the voltage IS EXACTLY THE SAME and has the same amps, if the voltage is off you can damage the computer, if the amps is off you can damage the adaptor.
If by some fluke it doesn't seem to be the battery, and you tested the adaptor and the AC port doesn't feel loose, then the charging circuit in the laptop might be shot, in which case you'll need a new motherboard.
I think that covers everything, sorry for the wall of text
It should boot when connected directly to the power outlet through the laptop adaptor. If it is not boot, then the adaptor might not be supplying the needed power to boot it up.
If it is possible, try to isolate the issue. Charge your new battery using another laptop. Then plug it in your laptop to see if it works. If it will work, then it is the AC adaptor of your laptop that is defective. If the charged battery still won't make the laptop boot, then there is something wrong with your laptop hardware. If could be a motherboard issue of your laptop.
Hi Steve, If you haven't gotten any batteries to work properly at all and the problems are different each time, I would say the motherboard is shorting out the batteries and causing weird problems. One last thing to try if possible..
Try a known good working battery, if that battery doesn't work then its verified that the motherboard is bad. If the known good working battery works in that laptop then you got a bad batch and it will be a battery problem.
Since your laptop turns on with the ac adaptor means that the ac adaptor is good.
Hi ! While power off, disconnect the power adaptor. Take off battery.
Plug the power adaptor back and try to start ! Is it running?
If yes, than the power adaptor is OK.
Now shut down and disconnect the power adaptor. Put back your battery and start! Leave it untill you 'empty' the battery. Do not start your laptop.
Plug the power adaptor and do not start your laptop yet. Is there a led idicator showing that the battery is charging ? Does it shows when the battery is full charged (e.g. red/yellow=charging, to green/off charged)? If not, leave it for at least 3 hours. After that, start your laptop (adaptor is plugged) and see if you still have an icon saying charging 99%.
If that is the case, then something is wrong with the battery.
Check your warranty, and replace it. DO NOT OPEN the battery - nothing interesting you will find inside - nothing you can do !
You may be able to get a battery charger but its rare.
If you do wish to use the AC adapter, take care with positive and negative. Also the voltage of the battery is actually lower than the AC adapter in order to get charged. I don't know what is going to happen if you do choose to use AC adapter as battery. 75% chance that it will work.
Hello All; I used to have these same problems. I replace my BIOS battery, which I know was dead, because all settings get reset when I unplug the power and remove main battery. You might not have to replace it if its still good. Back to the main battery problem, You have a good change of solving this by going into BIOS, and under Tools there is a Battery Calibration option. Do the calibration for the main battery and-or other optional batteries attach and it will most likely solve the problems. This calibration process will take a long time; 1-charge, 2-discharge, 3-recharge, so leave it over night or however.
There was a mention of updating BIOS. This could solve the problem too, because BIOS controls the charging unit. Also, make sure you have Compaq Power Management install on your OS, (download at hp.com).
One note: it will not charge if the battery is about 93% or higher. 93 is not exact, but close to 90%. so test by discharging to below 90% and it will start charging again.
If anyone tries this, leave a post of your success or failure.