While today's laptops are designed to be plugged in 24x7, some laptops such as those desktop in a laptop form need a laptop cooler to run 24x7.
But most laptops will be just fine.
PS> If this discussion hits some 100 posts I'll link to the existing 500+ discussion and lock this thread.
I use my Hp dv 9207 laptop as a desktop replacement. I use it on my desk 99% of the time. I shut down my pc every night but I leave the laptop plugged in 24/7. Is this safe? Will it destroy the battery or any of my laptop's hardware if I do this? What are the cons of doing this? Thanks