The little green light on charger goes off when i plug it into Dell Inspiron 6400, the charger works fine

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.

Just to understand your problem your laptop is working properly when plugged directly to the power cord but not when running only on battery? Then it sounds like you need to replace the battery.
thank you,
Lee

hi
when plug adoptor any trebal in mouse working if mouse aero do some problem buy orignal charger
becuse local charger is not work properly dell some model spaishaly 6400 ok if u have orignal charger change bettary
if fix your problem click yes for vote

Well often batteries from 3rd party manufacturer do not work in some laptops, see even the batteries have a "Chip" in them identifying them. Also sometimes these batteries are just no-good. or arrive flat, too flat to be charged up via the supplied charger. Anyway hopefully none of that applies and this will work. Now Turn PC OFF, put battery in unit. Now plug in wall unit, then plug into the PC, now leave the PC totally alone for at least 3 hours. Now the unit should work. Now how we tell where the problem lies is like this, Turn OFF, take out battery, now plug in the wall adapter, now the PC should work Fine like this. Now remove wall adapter, and insert the battery, the unit should go on this.. ONLY of course if charged. Now if when plugged in there are problems, it is more than likely, that indeed the battery is faulty, in some way.
These links below detail what steps to take to remedy any situation. The 2nd link is great.

http://www.dell.com/content/topics/global.aspx/batteries_sitelet/en/batteries_faq?c=us&l=en&cs=04

http://ftp1.us.dell.com/diags/R66243.htm

When you press the power button, no lights, fans, beeps, anything?

Is the power jack moving around? If not, I would check the charger and cord to make sure power is getting through to the plug that goes into the jack.


I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

The charger is 60 WATT for ALL Dell Inspiron laptops.
I have a Dell Inspiron 2200 and it charges using 60 Watts

inside were ur charger goes into you computer try to use plyers to pull it out some and that ""MIGHT"" work

does the machine work at all? at best its faulty charger , I recall a laptop sometime ago I worked on had a fight with what looked like , 3 pints of milk and a cup of coffee showed same syptoms, could be faulty MOBO

hope this helps

u r very correect its the time for new 1 to be bought. u can get the new 1 from radio shack websites. and also dont try to use that faulty charger again as it can possibly blow the laptop electrical parts internally due to any over power short circuit.

If the charger is older and since you saw the light go on then off again, it could just be the charger wires. Assuming your charger has a black box attached to it, try pushing the cord in towards the black box (usually the end leading to your laptop) . If that doesn't work, wiggle the cord in that area. If this works, your problem is simply the wire is worn out. You can fix it by exposing the inside wire where the bad connection is, snip it, reconnect and cover with electrical tape. I just did this to my sister's last week.