Unless you're a gorilla on steroids - you can do it. It just requires patience, a little research, and patience. (to wait for it to dry BEFORE you power-on)
Be advised - each time you power this unit up, via battery OR power adapter - you decrease the likelihood of recovery by an order of magnitude.
That sounds like a mega over-exaggeration but seriously, powering up a shorted circuit is what damages it. You could dump your laptop into a beer tank without batteries (or hard drive) and recover it just fine a week later. (though you'd have PLENTY of cleaning to do) But that little spill will continue to damage it each time power is applied.
I used to submerge $350,000 dollar lasers in di-water (CCAs, processor and ALL) for a cleaning process. As long as all the caps were bled down, and it was vacuum dried after - it never harmed one of em. (I built a couple hundred)
So stop being so chicken with your cheap laptop.