My laptop is not working when plugged off and

Remove the battery before you plug in the charger/adapter and see what it will do. It can't recognize a battery mode if there is no battery. Maybe the charger you are using is not appropriate: different voltage, wrong polarity, the tip is not in contact with the plug terminals, or the circuit is not closed to allow the passage of current.
Rocketfish, Targus , and a few others, manufacture universal chargers that work with may laptop makes and models.

Unplug the power supply, take a stiff tooth brush and clean the battery terminals in the laptop plus the battery, re-install the battery and plug the charger in, If that fails you need to find out if the charging circuits are putting out the proper voltage before you replace the battery.

contact hp tech support and give them the serial no and product no of the notebook...battery connectors have gone bad

I had the same problem on my CQ60. HP battery test showed one or more cells not working. After spending about 2 hours talking to some guy in India,or somewhere, he came to the conclusion that my battery was bad. HP sent me a new battery, which fixed the problem.
kenbun

I had a similar problems and I had my batter replace by Hp free of charge. Most like your batter could be damage internally or it could be a motherboard problem.

I suggest you visit this HP link http://h20239.www2.hp.com/techcenter/battery/Battery_max.htm

try a simple power cycle. Take out the battery, leave power adapter plugged in. Hold down the power button for about one minute. Then hit the power button normally this should correct the problem

Here is some great source to solve any kinds of laptop's problem.

» Hp Laptop's Solution
» Compaq Laptop's Solution
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Here is some another Great source to download any kinds of laptop Drivers.

» Hp Driver's Download
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a47

http://h10032.www1.hp.com/ctg/Manual/c00444244.pdf

Page 205 should answer your question.

It sounds like one of the most frequent failure for a laptop, the plug on the back of your laptop is probably broken. Check if it's loose, try to move the plug until you get the orange light. If it's the case, someone need to resolder/replace the plug on the motherboard.

Hope this helps! Let me know how it goes.

Alex

Chosenone, Even though the battery meter shows it fully charged I doubt it?s correct. Over time rechargeable batteries loose their ability to store power. How long depends on the battery manufacturer and how well you treat it but you can consider yourself fortunate if your battery lasts three or four years. Beware of people who suggest you take apart your batter to bypass the safeties or replace old battery cells. Defective or improperly handled batteries can overheat and cause fires when you least expect them. Let us know if you have any more questions and please don?t forget to rate this post.