I hate dell, every single dell I have owned was junk, even the one I got my niece failed.
They put a ID chip in the motherboard so that it only works with their chargers, once that chip fails and from what I read, they all do eventually, your laptop is junk.
currently I have two dells, one will not charge or even recognize the adapter, and will run off of battery power only.
and the other one wont charge the battery but will run off the adapter and since it can not recognize the battery, it dumbed down the CPU or w/e and runs at less then half power, and no way to bypass that, its some sort of fail safe dell puts into the ID chip to prevent the battery from over charging and exploding.
I read they used to have serious problems with that.
The only way to fix them is to buy a new motherboard, because the ID chip is embedded into the motherboard,
which costs more then I even paid for the laptops.
will never buy a dell again.
Asus all the way.