If the machine is off, it should charge. If not it's a hardware issue and estimates are needed.
Also, Dells have a system that may not allow third party chargers and batteries. And the third wire on the charger can break and cause such pain.
I have rarely found this to be a software issue, but just in case, be sure the latest BIOS from Dell is installed.
I have a Dell E5500 laptop, refurbished, and working in all ways except one. I bought a new battery, which works and holds a charge of somewhere between 2 and 3 hours when fully charged. the problem is that it will ONLY charge if it is plugged into an external display that is also plugged in. The really strange thing is that I bought this laptop because my Lenovo G510 laptop was having problems with its AC power connection, and had the exact same work-around (which is how I figured out that it would work for this computer). I'm really confused, and I've tried every combination of battery/ac adapter/outlet, etc. that I have access to, and the only thing that works is having the laptop(s) plugged into an outlet and to a functioning external display to charge the battery. I'd like to be able to charge the laptop without needing to find a free display (for instance if I'm on vacation) just to get 2-3 hours of use.
Please tell me you've heard of this problem and know of an easy fix. Any suggestions will be appreciated...especially ones that work