Maybe someone can give me a clue, or a little help. I have a charging problem with a samsung NP350V5C motherboard is QCL4 LA-8861P rev 2.0 the battery is detected, and the charge light turn orange. but the battery doesn't charge at all.. It runs on battery , or with AC plug, the battery depletes.. when I plug the charger , windows tells me battery charging, but the battery stays the same level.. I try with different battery, with the same results... the batteries charge normally on a another, samsung laptop.. the charger is OK too. anyone has an idea?