Vostro 1500 Charger Light goes off when plugged into Laptop

How old is your laptop? if it is over 5-6 months it could be because of a faulty battery. You may want to upgrade or change your battery.

Remove the main battery from the laptop and try power, if it works the battery is bad, if no change the charger needs to be checked for proper voltage. Since your laptop is less than a year old you should have warranty for up to the year, check this asp and find your paperwork should verify.

motherboard whether shortening the power supplier
The problem input voltage or the motherboard must repair or replace motherboard

Motherboard is bad that's why the ac adapter light will turn off ,possible short ciruit on the board. you need to have a replacement for it. Call dell tech support for repair.

there is nothing you can do to a charger as the technology is such. but I have seen that in such cases the problem could also be with the socket on the laptop. check that as well. if the charger is not working then buy a universal charger and use it.

I had the exact same problem (Vostro 1500), the short story is the computer is dead and I'm looking at replacing the motherboard. Here's the long story: Whenever I got the error message, I'd fiddle with the connection at the back of the computer, and "reset" the power adapter (see below for my reset procedure). That worked for a while until last week--the computer refused to recognize the power adapter, and my little trick wouldn't work. I have no means for charging the battery, so now the whole system is dead in the water. I've determined the problem is not the adapter itself, as it works fine in another similar unit I own. It's definitely the computer's power port or some internal component related to it. Lo and behold, a bit of searching on the internet has revealed that this is a common flaw with Dell Inspiron 1500 series, and Vostro is a close relative of the Inspiron. I'm going out on a limb and assuming it's the "Inspiron Affliction." Anyway, every solution I've found recommends replacing the motherboard, because the power port is integrated with said board. $225-$300 is the going price. I'd just use a dock, but Vostro doesn't accomodate a dock, so that option is out :-/

Dell Power Adapter Reset: If your power adapter has an indicator light, does it refuse to glow when plugged in? To "reset" it, unplug the adapter from the wall and computer, then unplug the cord where it connects to the transformer brick. Plug it back into the brick, then plug it into the wall but not the computer. If the indicator light doesn't glow, then something is wrong with the adapter. But if the light glows, then your adapter is good. The next step is to plug it into the computer, if the indicator light stays on, you should be OK for now (although it will probably fail permanently sometime soon). On the other hand, if the indicator light flashes briefly and goes out, the problem is in the computer -- back up your files while you still have battery power! Either way, if your computer is still in warranty, I recommend extending it another two or three years, if that's an option.

dear,

did u check the charger itself...its important ...

if you have multimeter then unplug the charger from laptop and plug the mains from socket to th charger plug and check the output DC voltage..is it coming, if coming then is it constant or varing ...if varing then u have to check the charger inside by an expert...
if its ok then remove the battery of the laptop and plug the main to charger and charger to laptop and then check its performance by switching on laptop...if its work then battery issue....

You have either a faulty/worn out battery or a faulty charging circuit.
Recharageable battery have a finite number of charge and discharge cycles and over the years the battery life gets shorter and shorter until it is worn out and won't charge any more.
If the battery is more than 2 years old then the battery is most likely worn out and needs to be replaced.

The DC power jack on the laptop may be worn out and needs to be replaced. Does it begin charging if you wiggle the power jack a bit?