The normal HP charging cable has that type of input connector?
cable doesn't have that type of input, but does have that type of output connector
Anyhow certainly don't expect this to charge a laptop to full etc... A laptop is much more power hungry than that..
not questioning, you're saying that a laptop whose usual battery is 2,200/4,400 MaH will consume more than 18,000 MaH?
what size pack would a laptop need?