A few days ago, my two year old laptop battery stopped charging, but it still ran when it was plugged into a POWER source. I researched some solutions and it seemed that it was just a bad battery. I PURCHASED a new battery and placed it in the laptop, but it still will not charge it. The laptop still continues to work when it is plugged into a power source. Any ideas as to why my laptop won't even charge a brand new battery? Thank you!Hey Asang01,

Sounds to me LIKE the lcd inverter is non functional. Its a $25 part that is housed in the bottom of most screens and converst the 240v to 12v, some MANUFACTURERS only SELL the screen complete with a the inverter ($600 so get second opinion). I had a similar issue with Dell D600 the only difference being is, it wouldnt work IF i had the battery in the laptop but has worked fine for 6 years on mains. If your lucky the other possibility is a loose cable connection to the mainboard.It's his battery...not the screen or inverter.

At any rate with new batteries it's usually best to charge them overnite without using the PC...