Ok I'm a laptop newbie so I got to ask you a bit stupid question Can I connect USB keyboard and mouse along with cooling pad on my laptop? I'm guessing that connecting 3 USB devices will drain my battery faster, but can attaching 3 devices be somehow harmful to my laptop's battery? I think that if I keep running it all while having my laptop charging it will be alright without any danger to my battery. What do you think?
Do what you want to do? That’s OK. You wouldn’t to worry about the USB devices that cause your laptop battery broken. I have used my laptop for more than 5 years and usually plug a keyboard, a mouse and a U disk in.
You need to Drain your Battery often and the You should charge it again. Then only it will come for a long run. If you keep on Using only on Direct power your battery won't get chance to the release its charge. But you should not completely drain your battery you should maintain a balance with usage of battery and power then only your battery will give you good results.