You replaced one, but is the battery over a year old? Why I ask is that the batteries are usually 300 cycle rated and it's possible to wear it out in one year.
Next the Dell and others have a 3 wire charging system and you can get failures in the power jack or motherboard which can get expensive to fix.
REMEMBER that we can always charge a GOOD machine by shutting down. We don't want Windows and drivers to play a role here. Always do your charge test with the machine off.
Hello, i have Dell intel core i7 its showing me again and again not charging even i have changed charger battery but still the fault remains kindly check the screen shoots of my laptop here
http://furiousblue.com/3L1

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