Thanks why is that as i remove the battery of my laptop it doesnt open...the AC per chord that u are talking about is it the charger?thanks its a big help if u answer back Godbless:-)

Perhaps remove the multi-bay battery, and let main battery charge all the way. Then reattach multi-bay battery, and see if it's recognized.
(Will charge)

That is AC adapter (Charger) removed, then remove multi-bay battery.
Plug AC adapter back into laptop, THEN plug AC adapter into power.

[You do Not want to unplug an AC adapter from a laptop, with the AC adapter plugged into power. Could be a power surge/voltage spike. Unplug AC adapter from power, when plugging into laptop, or unplugging from laptop ]

Main battery charged, unplug power to AC adapter, unplug AC adapter from laptop. Plug multi-bay battery in, then AC adapter.
(Then plug AC adapter into power)

Post back in a Comment.

Regards,
joecoolvette

Try another cord/charger with the EXACT same power specs. If you have a multimeter, verify DC voltage at the AC jack plug. If the AC jack, in the laptop, has been pulled, damaged, it's may have a loose connection. You didn' say if ANY LED's, battery charge, work? If the battery is charged and it doesn't start on battery only, then you have other issues. It may need a ride to a Qualified Computer Tech.

I had trouble looking up that model on the HP page, but you should check this page and see if this model is affected by this NVidia litigation. If it is, you can get it fixed/replaced on NVidia's dime.

http://www.nvidiasettlement.com/affectedmodels.html

Good luck!

it could be a couple things: Are you using the standard 90 Watt ac adapter, or the Travel auto/Air adapter. The travel adapter is only 65 watts can will charge the battery
If using the standard ac adapter, see if you can try another Dell D series adapter and see if you get the same error.
If same with another adapter, the issue is the charging circuit. If another adapter works, then replace the adapter.
If the charging circuit is bad, it will be the chargerboard or if intergrated, the motherboard

if it is not charging the battery will go dead.soo recharge it if it doesnt work then it could possibly be your charger.but alot of times the soldier on the input plug becomes loosened and doesnt get a connection. how did u check the chager

It could be a battery problem. Try switching to AC mode by plugging in to an AC outlet using your Acer power chord (battery charger also). If the charger led don't light, it means it's defective and it can't charge your battery. Please try another power chord or battery charger then. Just remember to take out your battery when using your laptop in AC mode to lengthen your battery life. Regards!

Make sure the light on your ac adaptor is lit when you plug it into the wall outlet so this way you know that the ac adaptor is working properly. If you do get an led to show up then try again, if you still don't get power to the laptop then take out the hard drive and dvd drive from the laptop and try again. If you still don't get power then for sure the motherboard is bad cause that means the voltage is going thru it properly.

Sounds like a back light problem

Sometimes, the battery alarm is set to high or off and it will automatically warn you when the battery is at a certain percentage. Most newer laptops will even warn you when the battery is going bad.

The AC cord is both the power cord and it will also charge the battery when plugged in as well.

So, it's safe to run on just battery as it may just be telling you that it doesn't have AC power and that you're running only on the battery. My Satellite laptop is setup to warn you when it's only on battery power as well.

Had the same problem, My other Dell charger would work fine but the original one that came with this laptop would throw an error message that the Charger wasnt recognized. None of the suggestions on the forums worked.
I held the chord by the circular flex thing at the end, and pushed in the power pin with force into the laptop, held it for a few seconds and now it works fine. If you push the pin slow and gently into the laptop, it doesnt recognize the adapter. I think the problem is either with the power chord connections inside or with the adapter inside the laptop. Try it!