So, i got a Dell Latitude c600, charger/adapter, two brand new batteries.

The laptop is not charging its batteries.

I checked them in an dell inspiron and they are working fine.

Anyone can help ???

I had a friend with the same problem, although it was cured with a new battery. Give Dell a ring and tell them what you have done ... theymight have to send you a new Laptop!

try to clean the contact point of the notebook from the battery... it might be rusted or dirty...

Thanx for your advices.